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d.write("var wordMap = new Array(\" underground kent club organisation it's collection people interested exploring documenting underground military sites work closely with many organisations national bodies have obtained permission visit ‘off limits' limits other that been explored abandoned open elements encourage anyone enter these places risk injury themselves others these dangerous prone collapse make sure thoroughly equipped torches hard hats good footwear never alone best thing just enjoy your monitor undergroundkent tunnels were constructed extension existing factory 1941 building above ground considered imprudent vulnerability medway estuary attacks housed workshop area both 100m long linked four traversing slightly shorter length shorts brothers also large system raid shelter which comprised main some 300m traversed smaller connecting tunnel complex connected single approximately 400m website updates dover admiralty pier turret pyestock henley updated crowborough rghq aspidistra raid shelter drakelow tunnels eastry caves video archcliffe cells langdon hole check list below latest website includes reports videos maps plans page site dedicated features found other areas they mostly fortifications built over last three centuries included here made case mines heavily influenced industrial usage provide glimpse into rarely seen often ignored world exists beneath feet here will find information history defences sheppey thanet grain latest video facebook update adadmiralty fort usually known designed 1870 after royal commission report years earlier idenitified very desirable place enemy dock unload should therefore fortified design approved turret would house guns pier eventually weigh tons each speically tested largest point rmls 1881 delievered using even more equipment specially brought mounted 1882 entrance quay level wide passage through fort passages leading left first circular shaped basement turret's turrets plinth middle also shell ammunition hoists loading chamber second passageway magazine consisted chambers shells more info dover caves tunnels book written derek leach admiralty pier turret keen support western heights preservation society please their support please note getting makeover pages \",\" crowborough rghq aspidistra site this bunker sussex originally built second world house broadcasting transmitter which soon became known aspidistra partial during european service continued after when service finally closed down obtained home office converted cold replacing inadequate dumpy level beneath dover castle made huge changes original firstly completely gutted then mezzanine floor added wing generators conditioning plant other vital machinery well addition entrance major were wartime building that remains tunnel what crowborough bunker 1992 along with rghqs cold essentially came today owned police area training purposes looking main visible buildings four concrete ventilation towers these part 1984-86 refit when replaced through blast door leads lobby protected further three doors smallest interior personnel ventured outside following nuclear attack would have gained access back into another took them directly decontamination filtration equipment still present good working order running including pumps ensured lower levels remained constant presence their regular means standby tested regularly maintained along passageway canteen kitchen served personnel been living here beyond dormitories although beds cabinets removed easy envisage little space there people double bunks each cabinet actually shared between middle administrative lowest contained governmental areas such studio minister's ministers bedroom while police given modern multi purpose remaining very poor state include 1930's 1930s wooden ancillary large generator location east condition very good date visit plan video more info owned power complex inside room taken over corridor undergroundkent \",\" pyestock testing facility turbines site began developed 1930s seemed inevitable secret into research design engines which ensured it's importance britain well cold v-bomber force britain's britains nato declared nuclear deterrent until attack submarines claimed role were tested here along with harrier tornado cutting edge technology military such vtol supersonic concorde this reaching amazing mach royal navy also rigorously advent more powerful computers made need physical facilities redundant abandoned location surrey condition poor date visit plan video more info owned view cell west where engine placed frame measure thrust house built blow speeds through test cell another plant house intended combustion aerodynamic experimentation inside undergroundkent views \",\" henley cable works raid shelter northfleet company always been highly regarded manufacture cable electrical components clearly choice when system devised countermeasure growing threat german magnetic mines during second world result site constructed 1939 gravesend complex tunnels built underneath provide raid shelter company's companys employees with least entrances very signed internally ensure that there confusion looking your allocated space into chalk lined with prefabricated concrete were well laid including first areas numerous latrines form elson buckets remain remarkably preserved have seen post location kent condition very good above ground poor date visit plan video link more info privately owned ding dong ding undergroundkent main passageway leading room entrance inside number sections seat indicated give idea size broken glass \",\" drakelow tunnels this complex tunnels covers over miles started 1941 underground factory rover company were manufacturing aeroplane engines time within this dormitories toilets workshops offices electrical equipment even studio well other ancillary areas after second world initially used storage 1958 been designated regional seat government progressed became sub-regional control headquarters srhq finally rghq underwent major refurbishment 1980s only small area part thie included fitting blast doors bunker instead original wooden which remained place until 1993 when they decommissioned sold today preservation trust attempting ensure that cold feature lost remains intact future generations help understand period history location kidderminster condition date visit plan report video more info underground factory inside undergroundkent \",\" sands fort shivering thames estuary army forts were constructed 1942 design maunsell following successful construction deployment naval their purpose provide anti-aircraft fire within area each fort consisted group seven towers with walkway connecting them central control tower when viewed whole comprised bofors four searchlight they arranged very specific centre semi-circular fashion around positioned further away still linked directly forts followed this plan order grounding called nore fort sands finally shivering three place late 1943 longer standing construction relatively quick they easily floated grounded water more than 100ft deep access posted these entrance base platform parts ladders that would have used visible today poor condition indeed attempting access extremely hazardous best from boat safe distance action during second world there doubt proved their worth much fact command immediate post-war period various designs forward however none came fruition 1952 government decided pursue programme sustained damage storm 1953 tragedy struck same again months later ship destroyed four civilian caretakers killed incident 1955 office operational value dismantled 1959 been pirate radio stations 60's 70's since then remained abandoned location condition poor date visit plan video link report more info project redsand control left another view taxi bofers taken main ready lockers background view gangway running round perimeter this staircase leads middle floor each floors undergroundkent \",\" south foreland battery deep shelter this first deep shelters that were built probably used people manned nearby plotting rooms well crews operations staff shelter three entrances which have been sealed since mid-eighties inside very poor condition plywood rotted away from walls tarred paper line ceiling become totally covered white mould also covers some stairs places location margarets dover condition very poor date visit 2002 plan video more info owned national trust other sites area plotting room magazine stairs leading down main approx 150ft long another view inside slime looking towards third entrance floor complex secondary with more ventilation picture taken summer undergroundkent \",\" wildfire this organised trip between kurg subbrit canterbury archaeology society these tunnels were originally constructed 1930s reputedly cornish miners lying some 80-100 feet below ground they became headquarters commander chief nore during second world sandbank thames estuary near entrance river medway site former naval bases sheerness chatham primary function this bunker oversee command activities north local areas facilities included operational such plot centre well communications including telephone exchange staff stationed here around clock sleeping facilities toilets small kitchen also wildfire name given royal naval reserve took complex over 1964 about improving structure which fallen into poor state area retained improved along with plotting other ancillary rooms offices classrooms seen plan assist site's sites training facility stage manned officers ratings main level emergency exit opposite side another escape route ventilation shaft would have meant climbing vertical ladder tight bomb doors secured tunnel very steep slopes buildings remained until 1983 closure base moved current phase themselves damaged when fire broke soon after their access them proved difficult quality within location kent condition very poor date visit report plan video link other sites area fort borstal horsted shorts operations room standing front table many main frame teleprinter room 60ft crypto where coded messages received undergroundkent control telephone corridor leads down from \",\" eastry chalk mine started 1811 lime burning business remained production until 1914 access mine originally shaft developed sloping tunnel that emerged close limekiln mining ceased when local villagers began voice their concerns properties were danger collapse because mining beneath them tunnels then used hold festivities home guard sections rifle range during second world after this open public while period paintings done walls location condition very good date visit plan video report more info private property long gallery workings resemble three-dimensional maze demonstrate effect without forward planning abandoned following pressure from worried houses being undermined subsequently turned into folly village held underground during another paintings resembling stained glass windows placed view inside undergroundkent \",\" langdon deep shelter hole underground system which been sealed since 1979 called dumpy being long hill radio station which alternative site reserve central command headquarters based below dover castle have generator room telegraph signal station swingate location condition very poor date visit plan video link report more info this full asbestos access deep shelter steps rotten away with time large rooms showing ventilation right inside other views inside unusual another view view from bottom access tunnel undergroundkent \",\" grain tower battery original structure tower built 1855 based earlier martello towers that were first constructed defence against napoleon early 19th century stands shore spit medway brick covered granite fire from would support garrison point defend both entrance river front sheerness guns mounted roof fired barbette over wall rather than through embrasure 20th upgraded armed with order accommodate these raised concrete stone which addition providing platform also provided shelter could used stores control same time work undertaken within main body make better ammunition storage supply shortly after modifications boom across towards became anchor point this connecting beach further additions made during second world particular large roofed emplacement supported twin 6pdr behind directing light biggest stage barrack block stilts access location thames condition poor date visit plan video link report other sites area fort battery cliffe shornemead dummy view fort causeway view note shell lockers another this staircase leads middle floor each three floors undergroundkent inside looking loading dock over years many \",\" deep shelter this site battery wwii originally comprising guns with associated magazines shelters plotting room administration accommodation areas today only traces pits discerned among undergrowth surface buildings have been demolished however there still extensive underground remains this largest being constructed 1941 tunnelling royal engineers which accessed hole ground where upper entrance once stood completed 28th august designed accommodate officers other ranks stores weapons metal removed during 50's bird's birds commercial motors location dover condition very poor date visit plan video report more info full asbestos just inside steps leading down complex inside main tunnel views unlined section undergroundkent bottom stairs many parts very unstable tunnel part \",\" detached bastion north centre bastions located between drop redoubt citadel western heights their purpose assist defending northern approaches dover particularly from folkestone road along which envisaged napoleon french grand army would attack work bastion began 1804 part main works although incomplete 1815 when defeated battle waterloo 1859 royal commission called modification across reviewed unfinished completion construction caponier they were armed throughout phase occupation with rest fortress decline rapid turn century guns removed bastions very little after this time only local defence during both world wars relinquished second have remained empty unused since despite surrounding ditches becoming overgrown been vandalised location condition poor date visit plan video link fortifications this area well house outworks outer south flank casemates archcliffe cells galleries breakwater entrance undergroundkent \",\" cliffe fort built 1860's 1860s cliffe fort three thames side forts that were designed defend estuary also built work conjunction with coalhouse essex prevent hostile fleet reaching london construction difficult marshy ground cracking subsidence caused many problems working more surprisingly this home malaria mosquitoes which made life even more construction solely cater armament guns installed rml's rmls weighing around tons protection these provided granite faced casemates shields added defence these rails carriages stood still visible today 1885 became site experimental harbour system known brennan torpedo this world's worlds first wire guided missile originally there sets launching only remains progressive time replaced years later favour quick-firing remained armed throughout both world wars sold after second local cement company result sadly been neglected fallen into fairly advanced state decay location isle grain condition very poor date visit plan video link report other sites area tower battery shornemead dummy external view levels showing magazine battery casemate level causeway accommodation block emplacement inside magazines under feet water undergroundkent telescopic observation tower torpedo launch left would have winch shell hoist lantern recess \",\" fervent this naval reserve used before contraband control service commissioned shore base october 1939 with advent role fervent auxiliary buildings were built nearby administrative just dover tunnels under cliffs soon became raid shelters ammunition magazine faced hazard magnetic mines which plentiful waters thames estuary also preparation evacuation dunkirk 1940 1941 increased further when coastal defence force providing much needed support from d-day landings june 1944 onwards coastal patrol operated ramsgate control played vital keeping clear midget submarine also known wellington caves location condition very poor date visit plan video report more info site sealed entrance frevent most site chalk tight doors remains toilet tunnel leading communications room undergroundkent about high undergroundent wooden sleepers that would have been steps \",\" contact want responsive your questions issues please help filling necessary information areas below note take answer name e-mail address comments also contact \",\" dymchurch redoubt built 1805 forms martello tower system originally armed with eleven 24-pounder guns circular shape 220ft across interior casemates surrounding central parade parabolic design typical period 1854 garrisoned officers with renewed french threat 1860's 1860s ideal place provide protection flat beaches between hythe very napoleon would probably have planned land invading troops during world anti-aircraft were added along machine posts local defence location kent condition good date visit plan report video more info owned view fort casemated store kitchen area contemporary 1930's 1930s sign workshop second inside casemate this corridor runs throughout external observation post undergroundkent observation undergroundket \",\" athol terrace dover subject raids shelling from cross-channel guns nazi occupied french coast civilian protection this bombardment paramount athol terrace existing 19th century cave system ideal purpose extended modified could provide shelter around people most remains stable condition some areas inaccessible chalk collapse evidence occupation both second world eras abundant within tunnels location condition very good date visit plan video report fortifications this area tunnel leading into complex can't cant reason here does even show support tunnel brick pillars supporting roof site very good more views inside toilet block brick concrete lined undergroundkent \",\" north entrance weakest link fortress defence often entrances hardly surprising that much ingenuity goes into their design north entrance western heights nearest town dover most convenient access either supplies attacking force accordingly defences were substantial comprising bridges tunnel dates from royal commission period 1860s superseded dating napoleonic times single bridge over ditch crossed twin ditches lines which separated earth bank tenaille neither fixed first drop-down section hinged while second could raised roadway through shaped artillery fire brought bear approach road having entered with pair massive doors outer these slid rails deep slots side away obvious weakness hinges then turns sharp left runs straight right towards inner gateway laid cubes probably guard against sparks location condition poor date visit plan fortifications this area citadel well house outworks outer bastion south flank casemates archcliffe cells galleries breakwater detached drop redoubt still used main 60's when they built sadly water tanks demolished lower looking back rooms allowed down length undergroundkent counter weight drawbridge counter although clear this photo wall been worn movement leaving whitewashed brick stairs lighting recess magazine heavy sliding protecting drawbridge spiral staircase sally port sealed three filled spoil when 1960's 1960s filled tank \",\" archcliffe cells entrance western heights originally grand gateway place known gate very imposing structure galleries comprised several rooms some which were used cells great shame that demolished make road during 1960's 1960s guard house still location heights dover condition very poor date visit plan video fortifications this area citadel well house outworks outer bastion south flank casemates north galleries breakwater detached entrance iron grill above door hole cell inside cell prisoners room vary flow control ventilation into corridor undergroundkent \",\" channel tunnel 1880 attempt many proposals been made dating back napoleonic times 1875 serious planning began both sides however early attempts english side were very successful flooding continual problem test shaft sunk abbot's abbots cliff near folkestone followed second shakespeare 1881 tunnel expected completed 1886 british government beginning grow increasingly concerned that would render britain extremely vulnerable face invading army from europe this time recently unified germany perceived posing greatest military threat government remained little work proceeded after 1882 project forcibly abandoned 1898 when bring permanently restrained through high court today wooden props within original rotten crumple easily chalk falls numerous slopes downwards height water begins increase until point reached beyond which access possible location warren condition very poor date visit plan video report more info owned network rail main bore sleepers entrance goes under mainline railway undergroundkent \",\" wartling rotor radar station became operational 1941 radar station 1943 fitted with larger type which consisted rotating aerial array both transmitter receiver beneath played crucial part tracking intercepting thereby enabling destruction some so-called doodlebug flying bombs remained service after advent atomic weapons possibility global nuclear early detection systems radically upgraded along entire shift design construction buildings that were house these cold began replace second world stations 1955 been rebuilt complete underground bunker guardhouse like never designed withstand detonation direct event outbreak would have enabled personnel within continue strategic planning before during such faced serious problems water seepage since decommission 1976 various formed either sold privately converted case abandoned problem reasserted itself resulting large areas being flooded location sussex condition very poor date visit plan video link report more info stairs into complex bunker main corridor upper level kitchen area rest room ablutions power canteen operations undergroundkent kelvin hughes projector could record image 35mm film left winch system shell hoist views inside next page \",\" wartling rotor radar station page location sussex condition very poor date visit plan video link report more info stairs leading lower lever bunker main corridor level workshop picture shows high water showing damage caused apparatus room filter undergroundkent views inside complex machine previous \",\" north front casemates during fear invasion from napoleon moats where added existing citadel defences northern southern moat both their casemates built between these there also defensive caponier sadly this filled during 1960's 1960s dover corporation they gradually destroyed many parts western heights larger than with separate rooms whereas eight location condition very poor date visit plan fortifications this area citadel well house outworks outer bastion south flank archcliffe cells galleries breakwater detached entrance view front interior floors have been removed concrete blocks tipped down into casemate reason unknown accommodation showing iron racks upper floor steps leading ground stairs undergroundkent \",\" citadel designed last defence should remainder western heights defences fall enemy attack designs consists three redans western side single redan eastern flank there traces positions around well magazines barracks most impressive officers' officers mess pictured above excellent condition fact that home office have been possession this site since 1960's 1960s seen youth offenders institution more recently immigration centre this given rise modern buildings being built these detract greatly from main still clear impregnable fortress location dover condition very good date visit plan fortifications area well house outworks outer bastion south flank casemates north archcliffe cells galleries breakwater detached entrance imposing view front eastern wing basement area were cells located cell consisting little than small window ditch undergroundkent these casemate just transformed taken 2006 work ensuring preservation same place 2008 workshops dated 1890 \",\" fort burgoyne designed famous 'palmerston palmerston forts' forts protect north spur area dover castle which perceived weak spot defences most likely approach invading army work started construction fort 1861 completed 1868 total cost polygonal surrounded foot wide ditch with double caponier giving flanking fire along from northern point centre parade ground three sides bomb proof barracks originally armed guns ramparts them haxo casemates early 1900's 1900s these disappeared replaced machine world wars further changes concrete brick structures being added location condition good date visit plan video report more info looking bastion walls soldiers quarters inside passageway behind canteen forward room ablutions block officers undergroundkent next page \",\" fort burgoyne page location dover condition good date visit plan video report more info this splendid room with original features shows fort's forts officers lived fort burgoyne page late victorian internal decoration iron gates leading three caponiers original flooring still place horse stables inside casemates undergroundkent main entrance fort previous page \",\" undergroundkent links other underground websites other sites flickr page youtube project redsand subterranean history white cliffs underground barry stewart photography personal site facebook medway lines southeast defence organisations western heights preservation society kurg fort amherst wcms coalhouse fortifications club british caving association scotland's scotlands best kept secret portsdown tunnels palmerston forts websites sheerness heritage centre join undergroundkent group facebook personal website also enjoy taking pictures above ground than great site information tunnels fortifications dover photographs bunkers forts around kent dedicated secure redsands photographic archive looking after about interesting places towns locations kent wealden cave mine research chatham fortification club based portsmouth area that been running since 1973 formed 1984 group people enthusiastic online home over years deep beneath south heighton forgotten remains once vibrant maritime intelligence centre history home front keeping alive sprit remembrance wartime generation \",\" fort knock john maunsell naval forts were designed provide anti-aircraft defence thames estuary after luftwaffe began their raids london 1940 heavily defended dover south coast therefore presented much easier approach german bombing last four constructed disused cement works bank between northfleet gravesend kent coast access immediately available forts dock then floated designated site estuary grounded consisted guns primarily bofors magazines supports fort well beneath level radar unit housed very allowing defending crew monitor mount sighting raid august 1942 records remain stating that action against hostile aircraft march 1943 12th april february 1944 undoubtedly there many other engagements which longer exist abandoned navy late 1940's 1940s used briefly from 1965 1967 base pirate radio station before being favour another further reach jurisdiction british government 1992 finally removed still stands remarkably good condition today weathered north storms including 1958 1977 hurricane 1987 damage closely watched customs excise ensure cannot contraband purposes boarding possible access ladders have been location condition poor date visit plan video link report more info project redsand main deck sitting 60ft above pontoon knock john each mess rooms sleeping quarters store only inhabitants seagulls remains signal showing just below right undergroundkent \",\" undergroundkent plans thanks kent fire rescue service allowing their documents plans athol terrace barwick tunnel chapel caves east cliff dover eastern docks fanbay deep shelter guildford hammonds upper hougham langdon hole limekiln bond store lydden spout noah's noahs south foreland forland margarets rotor station martins battery townsend farm dressing trevanion winchelsea cave long hill tunnels brookslands plan wildfire shorts \",\" drop redoubt dover simply detached outwork great strength from which soldiers fire direction without flanking defences drop redoubt certainly formidable looking structure even with massive walls bombproof casemates caponiers providing excellent means defence surrounding ditch system over would have provided against enemy infiltration known lines they served very similar purpose mediaeval moats east ditch leads harbour opposite side line extends towards citadel this essential place final retreat should rest western heights fall access bridge evidence still clear once through this entrance officers quarters right guard room cells left barracks other could housed married also here were situated there each rooms overlooking more provide gunfire leading main magazine married further magazines attached caponier defending ditches location condition good date visit plan fortifications area well house outworks outer bastion south flank casemates north archcliffe cells galleries breakwater detached entrance caponnier inside fort guard officers remains roman pharos undergroundkent fireplace lower floor fort \",\" sarre brigade headquarters this complex underground tunnels built 1940's 1940s served headquarters south east army command manned canadian troops other similar bases were also established reigate canterbury tunbridge wells consists three parallel stairways excavated into chalk these lead downwards fifty feet before main areas rooms reached entrances blocked more recent years they have been bulldozed their exact location unknown location isle thanet condition poor date visit plan video report sites area minster post alland grange chalk mine manston decontamination access tunnel tunnel corrugated steel still good condition signals room some site alcove leading passageway supporting pillar which rotted away leaving this bizarre remnant undergroundkent inside \",\" well house citadel dover stronghold western heights served storehouse entire fortification would have been place final retreat should come under attack well grounds vital source water especially battle situation feet deep able supply 7000 barracked still home office retained many original features gives very good idea other around looked before they were deserted house levels flooring window frames their construction period 1805 1815 bottom level floor providing covering fire along surrounding ditch towards outer bastion location condition date visit plan fortifications this area outworks outer bastion south flank casemates north archcliffe cells galleries breakwater detached entrance from above main room which goes down some winch undergroundkent pulley there spiral staircases both lead window like this used over heights tower sitting \",\" tongue sands fort maunsell naval forts were designed provide anti-aircraft defense thames estuary after luftwaffe began their raids london 1940 heavily defended dover south coast therefore presented much easier approach german bombing last four constructed disused cement works bank between northfleet gravesend kent coast access immediately available forts dock then floated designated site estuary grounded defence consisted guns primarily bofors magazines supports well beneath level radar unit housed very allowing defending crew monitor mount sighting raid abandoned navy late 1940's 1940s used briefly from 1965 1967 base pirate radio station before being favour another fort further reachof jurisdiction british government june 1992 finally removed knock john february 1996 overnight storm caused collapse into find tongue's tongues tavern this page shows removing inch heavy navy location condition bottom date visit plan video report more info project redsand view sands chinook preparations made remove can't cant have been with bird crap cutting away undergroundkent stabilising loose putting winch gear round lifted crew airlifted aerial view removal \",\" south front casemates dover during fear invasion from napoleon moats where added existing citadel defences northern southern moat both their casemates built between these there also defensive caponier sadly this filled during 1960's 1960s corporation they gradually destroyed many parts western heights larger than with eight separate rooms whereas only location condition very poor date visit plan fortifications this area citadel well house outworks outer bastion north flank archcliffe cells galleries breakwater detached entrance front inside floor removed site state full graffiti place plastered stairs leading first same stairs view across ditch latrine area undergroundkent looked like 2003 before \",\" archcliffe galleries road improvements that took place 1960's 1960s meant demolition gate surrounding ditch filled fortunately galleries were inside gateway left untouched some walls these would have housed defensive features such gunrooms necessary means ventilation allow smoke created guns escape close guardroom rooms used cells location western heights dover condition poor date visit plan fortifications this area citadel well house outworks outer bastion south flank casemates north cells breakwater detached entrance barrel vaulted second world modifications existing napoleonic structure leading into latrine block area firing slit next door magazine this room looking towards main entrance other side showing vent undergroundkent original rotted away \",\" western outworks dover situated above south barrack casemates part outworks where four guns were placed along with gunpowder rooms shifting lobby during wwii many these modified recently structural supports have been built entrances prevent further decay emplacements rear structures would provided firing cover down ditch location heights condition very poor date visit plan fortifications this area citadel well house outer bastion flank casemates north archcliffe cells galleries breakwater detached entrance overview placements later storage workshop area during supporting brickwork added over past years later building work metal shutters window spaces original fireplace still visible another casemate floorboards joists each room shutter operated pulley system store directly opposite inside completely wood panelled type spark undergroundkent \",\" snowdown colliery possibility coal kent been considered early 1840's 1840s serious investigations were done until much later finally discovered around dover area 1890 however proved very difficult mine took many failed attempts several years before brought surface eventually only mines successful them construction began 1907 however tragedy soon struck when first shaft water pocket common chalk greensand beds gushed through killing work continued november 1912 became successfully bring 1921 miners went strike over reduction this prompted government emergency powers 1920 into force receivership 1922 pumps kept operation prevent continual stream from surrounding engulfing 1924 back production after being bought pearson dorman long they totally overhauled colliery modernised with introduction electric winding plant building nearby mining village aylesham house their families privilege kent's kents deepest well 3000 feet some 915m these depths geological heat starts become noticeable earned nickname dante's dantes inferno suffering stroke produce miner's 1984 massive downturn british about 1987 would like thanks geoffrey pinfold allowing site location condition closed date visit plan video report \",\" centre bastion battery construction began 1825 fill gaps between indented lines first equipped with extensive range guns then later mark rml's rmls were installed 1899 three practice battery placed inch batteries 1901 constructed centrally emplacements there during world their role replaced twin garrison point square tower provided false pitched roof fake windows camouflage look like domestic building location sheerness isle sheppey condition poor date visit plan video report other sites area rnxs emergency port control fletcher fort barton from coast side view land undergroundkent nearby magazine shell lift more views \",\" north weald redoubt essex late victorian period 1889-1903 mobilisation centres were constructed around london area order provide ready ammunition defend city these designed forts themselves although they could have been armed need arose being centre armament become apparent would with whatever guns seen appropriate time these it's structure clearly shows purpose ammo store viewed from above redoubt forms rough shape rear comprised magazines second building consists caponier giving covering fire into ditch further casemates known gorge that used either barrack troops storage space shells under normal conditions this utilised other equipment within magazine each room defined cartridge shell excellent lighting provided multiple lamp recesses similar stores accessed shift lobby underwent many changes during second world fitted allen williams turrets protect nearby ongar radio station location condition very poor date visit plan video report more info entrance view casemates gorge inside equipment left behind after abandoned site still place undergroundkent there damage view platform when using turrets defended another roof \",\" beacon hill fort need fortification harwich dated back roman times although until 16th century that buildings were constructed first small blockhouse abandoned after only years later second suffered similar fate serious construction work began 1804 with strengthening entire southern eastern coastal defences direct response threat napoleon fort redoubt close 1812 further battery been added unfortunately this destroyed enemy action erosion replacement built 1853 following extensive overview national area fortifications deemed worthwhile which comprehensively rearmed 1860's 1860s light renewed french invasion nineteenth drew considered obsolete outdated enormous changes warfare weaponry radically changed armament used defend great care taken ensure could easily effectively defended from landward side direction assault expected come advent aircraft aerial attack during brought about anti-aircraft artillery arrived form one-pounder automatic guns following armistice decommissioned sold local council removed with outbreak wwii 1939 clear reinstated active defensive wasn't wasnt 1940 cornwallis battery this consisted repel naval installation bofors provide cover location harwish essex condition poor date visit plan video report more info observation post 1941 postion inside magazines magazine undergroundkent kingsgate second shell hoist still place below thickness concrete size bolts suggest fitting very unusual corrugated effect \",\" long hill tunnels dover tunnels called dumpy being langdon hole this built radio station 1937 both very much same site been sealed since 2006 under tons chalk location condition sealed date visit plan video report more info private property undergroundkent entrance complex hands knee first 20ft looking back towards typical corrugated structure views main rooms side another part large sections have removed what would stairwell tunnel where most roof walls missing framework electrical equipment showing ventilation system right \",\" grain dummy battery this battery constructed supporting structure fort originally known however considerable difficulties were encountered during construction subsidence which cracking magazine walls decided finish temporary form only original design fourteen armoured shields scrapped 1905 been rebuilt with many emplacements removed improvements made positions that seen today surrounded ditch soon became flooded there evidence this being either first second world wars location isle kent condition date visit plan video report other sites area tower cliffe shornemead location isle grain undergroundkent dummy from southern side view front number emplacement shell stores under number inside store \",\" dover admiralty pier turret fort usually known designed 1870 after royal commission report some years earlier idenitified very desirable place enemy dock unload should therefore fortified design approved turret which would house large guns pier eventually weigh tons each speically made tested largest that point were rmls 1881 been delievered using even more equipment specially brought they mounted 1882 entrance quay level wide passage through fort with smaller passages leading left first circular shaped basement turret's turrets plinth middle also shell ammunition hoists both loading chamber second passageway magazine consisted three linked chambers shells solid shot third powder cartridges lighting alongside work continued around original rifle flanking gallery enclosed within walls addition ancillary buildings 1885 store cartridge coal bunker added filled concrete 1892 down-graded second class 1903 navy listed sold location harbour condition date visit plan video report more info owned board site battery quarters undergroundkent widening area construction 1907 inch 80-ton still sitting right hand locked it's position left base turning rack turrets shell hoist \",\" noah's noahs tunnel dover passageway through hill downwards slope towards union road it's precise date construction purpose clear although early plans suggest could have been used water main certainly place advent second world during which time converted into raid shelter concrete lined this evidence toilets still found length tunnel along with kitchen area blast walls regular intervals approximately metres 1105 feet long high almost wide wider than there great deal wartime graffiti including names dates well drawings aeroplanes ships submarines owned nearby church normally open public location condition date visit plan video report more info private property inside 1040 undergroundkent blast wall left height views inside \",\" test tthis battery constructed supporting structure grain fort originally known battery however considerable difficulties were encountered during construction subsidence which cracking magazine walls decided finish temporary form only original design fourteen armoured shields scrapped 1905 been rebuilt with many emplacements removed improvements made positions that seen today surrounded ditch soon became flooded there evidence this being either first second world wars location ding dong condition date visit plan video report more info private property \",\" ramsgate raid shelter railway tunnel tunnels underneath provided shelter from raids during second world purpose that they also served first they consisted primarily series large caves disused railway tunnel combined could provide people decided improve this system outbreak would clearly head radius anything miles constructed lessen distance cover further find there were originally entrances complex with smaller spur connecting main each entrance fitted heavy steel proof door idea close only immediate vicinity bomb detonation remaining doors kept open unless their immediately surrounding area contaminated hoped keeping town fresh still drawn areas considered highly unlikely whole time ventilation other circumstance vents length toilets cutting recesses into chalk walls gents' gents side ladies recess chemical closets corrugated asbestos cement partitions used make cleaning these toilets easier task…… first posts dotted throughout again lined these cold water supplies sink couch light small generating plant petrol battery power hours should generator break down rooms situated near ventilation shafts vent exhaust fumes location kent condition date visit 1980's 1980s plan video report more info private property other sites area clarendon house school ellington girls citadel above undergroundkent north portal taken 2002 sealed inside sign which once mounted south 1230 yards long junction between standard gauge narrow dodgem cars piled north raid steps leading arklow square this have been dumpton park drive \",\" barton point fort although originally recommended 1860 work barton's bartons battery commence until 1889 purpose battery provide practice royal naval marine gunners were stationed sheerness chatham additon able covering fire nore anchorage this long this advent first world only years later described obsolete became anti aircraft site fitted with guns navy continued their presence even expanded inter into part command gunnery school better known wildfire would seem that coastal artillery maintained well there mention positions here 1936 left 1960 privately owned contains many different structure indicate control observation points number other buildings constructed during expansion phase while original emplacements still visible magazines sealed location isle sheppey condition poor date visit plan video report other sites area rnxs emergency port control fletcher garrison docks filled barton point fort undergroundkent location entrance shelters magazine sadly very much damaged water surviving ammunition lift inside issue hatch main \",\" grain fort isle long been strategic importance safeguarding entrance river medway 1860 royal commission called casemated fort around existing tower however this proceed constructed separate site began large heptagonal earthwork surrounding semi-circular keep front ditch defended four caponiers another inner surrounded three demi-caponiers with other forts time upper emplacements were connected magazines below shafts passages which also accessible bridge from terreplein garrisoned barracked modifications made 19th century addition guns further alterations following years through second world remained service until disbandment coastal artillery 1956 sold 1961 subsequent demolition major features ditches filled rubbish location condition poor date visit plan video report other sites area battery cliffe shornemead dummy looking terreplein location undergroundkent main passage leading towards caponier junction between more views inside drawbridge back showing where draw shifting lobby lighting window above magazine only surviving ammunition lift stairs recess \",\" garrison point fort upper level built 1860's 1860s site earlier fortifications dating back henry viii 1667 amid fears dutch attack fort begun remained incomplete launched surprise capturing unfinished defences they destroyed work that been done then quickly moved their main objective naval dockyard chatham completed victory this embarrassing both admiralty britain's britains political military standing europe direct result this humiliating episode large bastioned very designed complete with batteries protecting entrance medway three more coastal shore later known indented lines further battery protect itself bastions protected landward side great deal fortification demolished between 1813 1827 while underwent major rebuilding programme towards period concern over defence sheerness raised although nothing until royal commission report 1860 which response renewed threat french invasion under napoleon report called construction casemated 1869 grand total £150 double original estimate armed rmls varying sizes 1885 experimental brennan torpedo system launching apparatus constructed entirely successful obsolete early 20th century world brought radical change armament shape rbls quick firing guns reduced during inter-war years reassessed again beginning addition pounder artillery disbanded 1956 fortifications such rendered advent warfare particular expectation time next exchange would nuclear closed only after entirety came management ports authority although largely unused neglected structure remains sound places many features still place granted status scheduled ancient monument secured fort's forts future protection location isle sheppey condition date visit plan video other sites area rnxs emergency port control fletcher battery barton docks location still today owned have parade ground inside ironwork contemporary view emplacement gunners room gunners duty these situated each more ironwork quite decorative casemate torpedo launch undergroundkent lower level \",\" garrison point fort lower level built 1860's 1860s site earlier fortifications dating back henry viii 1667 amid fears dutch attack fort begun remained incomplete launched surprise capturing unfinished defences they destroyed work that been done then quickly moved their main objective naval dockyard chatham completed victory this embarrassing both admiralty britain's britains political military standing europe direct result this humiliating episode large bastioned very designed complete with batteries protecting entrance medway three more coastal shore later known indented lines further battery protect itself bastions protected landward side great deal fortification demolished between 1813 1827 while underwent major rebuilding programme towards period concern over defence sheerness raised although nothing until royal commission report 1860 which response renewed threat french invasion under napoleon report called construction casemated 1869 grand total £150 double original estimate armed rmls varying sizes 1885 experimental brennan torpedo system launching apparatus constructed entirely successful obsolete early 20th century world brought radical change armament shape rbls quick firing guns reduced during inter-war years reassessed again beginning addition pounder artillery disbanded 1956 fortifications such rendered advent warfare particular expectation time next exchange would nuclear location isle sheppey condition date visit plan video other sites area rnxs emergency port control fletcher battery barton docks signs around magazines issue hatch inside magazine shutter still moveable inside lighting passage shell hoist place closer view showing window runs across passageway another lamp placed behind door provide light beyound well undergroundkent lower level upper \",\" sheerness rnxs emergency port control royal naval auxiliary service 1962 result cold nuclear threat britain particularly ports role auxiliary ensure quick effective evacuation major larger faster ships possible arrange safe anchorage remaining were also vital co-ordination evacuate into convoys that communication between control bases maintained features found this centre filter electromagnetic interference occurs electrical circuit interrupted field this certainly case following explosion which releases massive pulse powerful enough knock circuits systems used channel huge surge electromagnetism from prevent disruption location isle sheppey condition poor date visit plan video report other sites area fletcher battery garrison point barton fort docks inside complex main ventilation room undergroundkent entrance site another developed original fort casemate very damp causing paint peel brickwork more signs corridor originally lighting passage sign within views inside filters \",\" sheerness rnxs emergency port control designed heavy battery during first world fletcher battery actually completed until 1918 provided effectual fire cover nore anchorage dockyards giving effective protection thames estuary armed 1919 1941 emplacement added mount third unusual interlocking pill boxes also found western site marks construction this type fortification medway area coastal artillery disbanded soon after second became caravan ancillary buildings still excellent condition thanks care taken their fact they have seen constant observation points number other navy constructed wildfire expansion phase while original emplacements visible magazines sealed location isle sheppey condition poor date visit plan video report other sites area garrison point barton fort docks location main magazine part being used someone's someones garden site inch closer view plaque another fire control building undergroundkent rope from back would gone through here \",\" shornemead fort originally designed able house cannons work began 1847 finishing years later unfortunately ground that fort stands extremely marshy proved incapable supporting structure large proposed result completely rebuilt shape with curved area being placements casemates behind were barracks admin buildings same problems again caused major spite superficial strengthening carried magazines decided 1904 could possibly prove effective withstand attack felt would face disarmed further took place around until 5inch guns during wwii these quickly decommissioned during 1950's 1950s army school demolition destroyed location western heights dover condition date visit plan video report other sites area grain tower battery cliffe dummy location thames estuary undergroundkent view from eastern western estuary side what's whats left casemate remains which about 16ins deep water hoist still chain level higher numbered magazine \",\" dover breakwater detached breakwater constructed 1904 along with expanded harbour guns served defend itself alongside emplacements were searchlights accommodation magazines originally would have been light pounders heavier inch need artillery advent wwii twin added remains these 6-pdrs seen western searchlight sponsons clearly visible this vicinity although they damaged wave action quay level casemated barracks stores engine room latrines still their shell cartridge lifts place barrack murals that date from second world period including popeye mickey mouse defences appear maintained until coastal disbanded 1956 many structures within home seagulls rather large population pigeons needless there huge amount deposits piled harbour board intend seal near future prevent corrosive bird doing further damage well presenting hazard health extreme ends already closed anglers protective measure integrity structure location condition poor date visit plan fortifications this area citadel well house western outworks outer bastion south flank casemates north archcliffe cells galleries detached entrance turret undergroundkent eastern casemated ready ammunition lockers upper emplacement 6-pdr mural dates same olive wimpy shell hoist latrines which more dilapidated state block \",\" canterbury battle headquarters built tunnelling company royal engineers world part preparations 1940 other similar bases were also established reigate tunbridge wells sarre complex consists parallel stairways leading collapsed sections even construction site tunnelling come into many difficulties location condition very date visit plan video report more info private property looking towards entrance undergroundkent showing condition plywood tarred paper still place this very section main access doors laying bottom stairs door number right blast door another reason dangerous \",\" southern water control centre medway during early 1980's 1980s with cold still posing possibility nuclear attack built three emergency controls centres their area south east england sussex hampshire third kent this bunker utilised existing disused covered reservoir although structure itself completed never fitted used probably easing tensions between east west late eighties eventual collapse soviet union like many bunkers control centre first appears mound earth that visible from surface short ventilation towers recessed entrance opposite side hatch after entering through wooden door walking down flight stairs soon becomes apparent this building designed coping aftermath foremost consideration bottom steel concrete blast withstand massive wave incredibly high temperatures would have been generated detonation through decontamination room essential removing radioactive material deposited fallout more doors further protection leads generator second lock walking intake filtration outside come pipe filtered again because adjoining exhaust filters leaving main corridor then five other rooms kitchen toilets right store dormitory left exit ladder place faraday cage named after michael spent life studying electromagnetism protect electrical circuits within nuclear detonations give electromagnetic pulse ability severely damage unprotected equipment anything connected cables rendering them useless equipment functioning therefore housed emps reach much than radius even several miles away highly likely location gillingham condition date visit plan video report more info private property undergroundkent entrance into base small main leading store vent airlock kitchen shower head pump dispense waste exhaust \",\" fort royal commission 1859 identified need strongly defend approaches dockyard chatham medway fort part this defence strategy circular forts other being darnet that built itself very difficult build beset with continual construction problems such repeated subsidence because unstable ground which fort two-tiered building casemates upper level below them barrack accommodation magazines lower wider than access gained drawbridge short tunnel into central pillar within steps around circumference leading inside were water tank toilets ablutions bridges extend from guns themselves protected iron shields originally painted lines attempt make blend surrounding stonework fireplaces would have allowed used should necessity arisen where located separated three concentric rings each having different defined purpose inner ring lighting passage along lamp recesses could ammunition containing bottom lifts shell cartridge hoists outer consisted stores when state fortification armed rmls stayed there until nineteenth century observation post during first world second minewatching roof after ended abandoned location condition date visit plan video report other sites area borstal horsted wildfire shorts location medway undergroundkent peninsula remains under ownership draw bridge been backfilled placements hoist left casemate magazine slate still place magazine winches lighting window \",\" darnet fort construction forts very difficult instability ground original plans revised along with intended armament forts order building continue upper tier each fort scrapped entirely number guns reduced from further supporting measure thick iron bands were placed around spite revision close monitoring progress extra precautions taken during construction structural problems continued encountered flooded 1862 after failed cracks appeared both eventually weighted tons ballast water seepage when they finally completed indentical level casemates over lower containing mess rooms officers quarters ablutions cook house stores behind these magazines running inside perimeter entire each magazine light came lanterns easily accessible lighting lamp passages connected means separate shell cartridge lifts both remained manned gunned right including world when mine observation stations sites have since been sold remains nominal management ownership privately they given status scheduled monuments this prevented them being damaged inevitable vandalism more recent times deliberately permanently prevent damage location medway condition date visit plan video report other sites area borstal horsted wildfire shorts tunnel location undergroundkent only access boat exterior metal plate port entrance into casemate designed armed eleven rml's rmls stairs down flooded accommodation blocks magazine \",\" hudson's hudsons bastion dover castle built response threat invasion napoleon bastion constructed eastern side improve defences linked castle passage designed provide flanking fire from numerous firing slits caponier projecting into ditch would have provided even more power defenders location condition date visit plan video report more info property undergroundkent background stairs foreground lead east arrow passage looking roof which main park main door leading sign says target store with guardrooms right inside view inside galley stairs horseshoe gunrooms original fireplace enemy's enemys view \",\" buckland school cmany luftwaffe bombers that were unable reach their target london would simply release bombs wherever they tonbridge directly luftwaffe's luftwaffes flight path this town huge risk quick access raid shelters vital many schools such slade protection premises case there fact smaller since been used area through which plumbing heating school provided larger shelter remained untouched following only recently uncovered while building work undertaken resealed location dover condition date visit plan video report more info longer could climbing down ladder raid shelter inside blast wall still place kitchen clear pram pipes cables have built though back kitchen escape hatch undergroundkent \",\" kent fortifications select icon will show location fortification also find link that relevant page \",\" fort borstal forms part chatham outer ring defences along with forts horsted luton darland twydall redoubts constructed prisoners from nearby prison progress slow although land purchased 1870 construction begin until 1875 fort itself completed 1890's 1890s polygonal shape made mostly concrete surrounded ditch which defended firing galleries caponier rear back loopholed wall provides further protection this still clearly visible today time access would have been roller bridge remains inside casemates immediately left entrance rooms that used officers administrative right magazines reservoirs terreplein ammunition serving their associated expense directly below them during world wars training during second heavy site gunners remained 1957 after home office took over alongside institute sold 1990 plans restore open tourist attraction unfortunately planning problems prevented this project coming fruition location medway condition date visit plan video report other sites area wildfire shorts tunnel borstal undergroundkent view casemates inside firing slits facing entrance central magazine sign says explosives storehouse other side store cartridge side ablutions block into \",\" ellington girls school raid shelter built 1914 time outbreak first world 1917 raid shelter constructed possibility attack real threat this beneath school result that during total raids were launched against britain from german zeppelin airships resulting loss over lives main tunnel long accessed entrances directly chalk inside flights wooden steps sets toilets while heavily used significantly more during close very large complex ramsgate shetlers which much later provided areas different construction most second shelters using prefabricated concrete rapid given urgency belief imminent towards 1930s inevitable moment break 1939 location kent condition date visit plan video report more info forgotten trace left other sites area clarendon house citadel above undergroundkent parts seating still place three toilet area tunnel leading girls toilet sign drawing popeye dated 1944 shafts second \",\" clarendon house school raid shelter many luftwaffe bombers that were unable reach their target london would simply release bombs wherever they ramsgate directly luftwaffe's luftwaffes flight path this town huge risk quick access raid shelters vital schools protection most school built typical cover method some little more than reinforced rooms others purpose structures even comprised trenches with secure roofs walls soil sandbags this shelter very different other ones have been levels lower being much older possibly first world location condition date visit plan video report more info sealed other sites area ellington girls under escape hatch mechanism right flipped open inside level concrete structure toilet cubicles privacy given curtains still entrances steps leading section part seating undergroundkent back water pump keep which operated manually \",\" minster post master with satellite posts barham kingsdown herne such communicate group control maidstone other area folkestone pluckley also equipped take meteorological measurements pressure wind speed temperature large metal dome ventilator often called contained electrical connections aerial outlet pipe which used erect telescopic mast storeroom where chemical toilet kept generator shelf over most their 1950s generators right until they were closed down entrance shaft housed dipole this could make getting rather tricky location isle thanet condition date visit plan video report other sites area post alland grange chalk mine manston decontamination undergroundkent green weight hatch base ladder inside bomb power indicator fixture ceiling more pictures inside this sign warn that refill batteries very corrosive water pump switch change between \",\" south foreland battery deep shelter this second deep shelters that were built probably used people manned nearby plotting rooms well crews operations staff pictures great quality shelter being damaged fire location margarets dover condition very poor date visit 2002 plan video more info owned national trust other sites area plotting room magazine inside main corridors approx 98ft long middle linking base stairs steps leading sealed entrance back tunnel undergroundkent \",\" south foreland magazine these magazines have been sealed since 1960's 1960s result very good condition they sustained little water damge although some entered remaining features well defined served known scharnhorst location margarets dover condition poor date visit plan video report other sites area plotting room deep shelter battery access emergency escape hatches passageway leading magazine wooden shell holders still place sealed main entrance undergroundkent \",\" south foreland magazine only damage that seems have been sustained underground magazines caused water structurally they remain good condition these would served known shoeburyness location margarets dover condition poor date visit plan video report other sites area plotting room deep shelter battery entrance escape hatch main corridor leading magazine blast doors still place main wooden shell holders sealed entrance undergroundkent \",\" south foreland plotting room this second plotting rooms area fortress room battery provided fire control four guns when they were operating conjunction with other local batteries conditions inside quite poor easy access site that resulted extensive vandalism very similar nearby location margarets dover condition poor date visit plan video report other sites deep shelter magazine entrance access step ladder cloakroom ventilation main undergroundkent \",\" south foreland plotting room this first plotting rooms area even though there fire years condition still very good blast doors place cleaner than number location margarets dover condition poor date visit plan video report other sites area deep shelter battery magazine entrance undergroundkent access step ladder site damage short tunnel leading escape hatch view along shaft electrical fuse room original sign above door ventilation \",\" langdon battery battery situated cliffs overlooking dover harbour originally armed with guns later replaced served through both world wars until disbanding coastal artillery 1956 location condition very good visit plan video report more info private property undergroundkent citadel from above coastguard station approximately feet level control room coastguard expense magazines clearly visible sides emplacement looking back towards access lower this spiral staircase magazine where shells cartridges were stored serve another area magazine much better condition used storage tunnel leading cliff observation point frame across which electrical cables would have signatures posted here during signature gunner newton sept 1939 broke lamp cartridge store emergency generator shell hoist emplacements metal still place back conference \",\" brooklands shelter vickers-armstrong raid shelter clear mid-1930s that europe would break sooner later this time aviation built maintenance repair facility their base surrey which also operated training centre pilots late 1935 aerodrome final assembly hawker aircraft well test flying delivering hurricane fighter planes 1940 squadron formed with responsibility control cluster balloon sites around area obvious target shelters were into nearby abandoned sandstone quarry provide extra protection personnel stationed location condition date visit plan video report more info sealed each entrance supply drinking water undergroundkent whole tunnel complex constructed uniform rectangular passageways high wide raid precautions sign news paper cuttings right filtration equipment wooden casing notice reads case open dampers close damper small motor signs views inside blast door \",\" hougham battery coastal defence batteries along dover coast consisting three naval guns along with their corresponding magazines complex consisted plotting room observation posts other ancillary buildings there very little remaining battery today covered soil during 1970's 1970s following pictures were taken conjunction owners using equipment location condition date visit plan video report more info private property citadel from above undergroundkent emplacement magazine below uncovering entrance expense main luck here full backfill inside \",\" east demi bastion dover castle constructed castle's castles east ditch overlooking harbour directly linked castle passage lower level accessed either spiral staircases ends with lookouts over location condition very good visit plan video report more info private property owned looking magazines main magazine drawbridge protecting entrance into casemated room showing firing slits spiral staircase leading another casemated fireplace underground section small guardroom entrance from brink lined vault facing excellent view other vaulted tunnel rear short tunnels back complex undergroundkent \",\" wanstone battery farm battery consisted four magazines naval guns called jane clem named after young lady strip cartoon daily mirror probably winston churchill's churchills wife clementine along with were twin supply ammunition passed self propelled trolley along purpose built concrete paths this greatly increased speed which shells could reach turn firing rate round minute deep shelter nearby access this impossible entrance been demolished also plotting room still accessible power rooms observation posts workshops naafi guard officers mess living quarters part complex building that used during sergeant's sergeants fact farmhouse reverted location dover condition poor visit plan video report more info private property house entrance guardhouse control right magazine left identical best condition room where charges kept remains shelters foreground stores ready 7inch post would have reference point range finder behind close small bunker three separate sections electrical generator fuse boxes wall these tracks trolleys site jane' picture supported camouflage netting clem' workshop jail wooden pillow mount undergroundkent \",\" margarets battery rocket margaret's there underground deep shelter this site first unrotated projectile known which anti aircraft weapon officially particularly accurate thinking that fired large enough amounts enemy plane just might warnings here careful when entering second warning full pigeons location dover condition very poor visit plan video report more info access unlined tunnel inside main looking towards warden post passageways join tunnels corridors showing remaining plywood corrugated iron views inside complex undergroundkent \",\" dunkirk chain home station during world five radar stations were constructed give early warning approaching enemy aircraft around thames estuary area swingate constituted part system certainly played crucial role battle britain luftwaffe bomber formations could detected even before they crossed coast france layout station near canterbury identical that four transmitting towers receiving ones formed square centre which central operations room defence site included tower housed 40mm bofors well tripod mounted lewis near this structure remains concrete supports still seen however most noticeable feature main control block blast walls building have soil banked against them entrance into would been proof door heavily barred when closed thin rubber gasket fitted frame made tight seal first enter largest large trench-like runs through looking doorway other side there small immediately right this lock next anti-gas filter place wall supported filtering mechanisms metal pipe comes same from outside will show intake opposite these rooms controllers office toilet kitchen pantry form edge buildings strongly suggest some type standby structures they both topped with sliding hatches rails although completely immoveable quite remarkable wheels next more much smaller presumably very likely indeed supporting almost features inside remaining access restricted means cannot sure finer details what modifications it's continued cold period present brought about longer least good idea probably looked during second location kent condition poor date visit plan video report other sites area buried reserve tower buried reserves used action undergroundkent battery observation post built 1941 underneath steps leading down reserve impossible full water hexagonal additional defence receiver surrounding transmitter bases steel mast foreground transformer possibly generator it's being shed background today \",\" dunkirk chain home bofors tower near radar station tower called because that placed here protect from enemy aircraft also place lewis mounted tripod inside building manned guns location canterbury kent condition poor date visit plan video report other sites area buried reserve station view bofors another ammo store rooms used accommodation base bofor's placement hatch undergroundkent \",\" dunkirk chain home buried reserve chain home station were buried reserves which would have been used event main transmitters being unusable following attack from enemy aircraft brit visit this reserve flooded depth approximately eight feet even after dredged hours water still remained about inches access them restricted this means that cannot sure finer details swingate what modifications it's continued into cold period right present brought buildings longer least very good idea probably looked during second world location canterbury kent condition poor date visit plan video report other sites area bofors tower station entrance stairs leading entrance lobby watermark clearly visible escape hatch transmitting room switch gear wooden doors place undergroundkent \",\" lydden bunkers situated hill there three large buildings which were used ammo dump tunnel front complex raid shelter since been destroyed location canterbury condition poor date visit plan video report looking bunkers undergroundkent view warned still property entrance each section numbered would have held outside store inside camouflage place \",\" bourne park railway tunnel asked tunnel beneath land because wish view from mansion spoiled being rich what wanted don't dont they always came handy though during there military called 'boche boche buster' buster location canterbury condition very good visit plan video report other sites area etchinghill entrance southern 2002 mile post mouth another mile marker inside undergroundkent \",\" etchinghill railway tunnel elham valley product great inter-company rivalry between south eastern london chatham dover company came with plans build line linking canterbury folkestone which order beat lcdr adopted their finally being absorbed into 1891 work started newington near 1884 first section cheriton barham finished 1887 second fraught problems over land purchase owner bourne park wanting railway anywhere could from house massive tunnel built eventually trains full length between number stations were namely lyminge bishopsbourne bridge station later renamed west 1899 avoid confusion lcdr's lcdrs east strange names considering north wooden-platformed halt 1908 rival railways merged become becoming part southern 1923 following period rationalisation whole reduced single-line working signal-boxes removed except signal-box 1937 replaced porter-operated ground frame 1940 army hands boche buster became stationed hidden 1947 formally closed dismantling shortly afterwards completed 1953 location condition very good visit plan video report other sites area standing disused looking towards mouth mile marker undergroundkent relatively short about 180ft approx exit collects water very easily looks like stream continually running through both ends \",\" road remembrance bunker this bunker complex entrances which both sealed most pretty good condition consists various sized rooms clear that this more than just raid shelter wooden frames show partitioned areas within there large area above main used filter taken into location folkestone condition poor date visit plan video report other sites area scraps posters still visible wall toilet with frame sink other room very similar first size layout undergroundkent above another filtration threat attacks seriously these cylinders would have contained chemicals through from outside could been filtered eliminate possibility contamination electrical system another passageway wooden it's ventilation duct entrance writing made poster security saves lives because nobody talked quite \",\" swingate chain home station duringbefore outbreak world five radar stations were constructed give early warning approaching enemy aircraft around thames estuary area dunkirk constituted part system certainly played crucial role battle britain luftwaffe bomber formations could detected even before they crossed coast france dover situated close castle with commanding view over harbour into english channel first came prominence during first when series trenches redoubts being aerial photographs held imperial museum show three although there little visible evidence them today apart from dense patches bramble some right places always good indicator disturbed ground constructed within weeks local work force these would have formed anti-invasion defend against inland attack widely believed that should germans opportunity invade done landing much more accessible particular romney marsh sandwich this type earthwork redoubt seemed quite modern time it's construction advent second obsolete 1930's 1930s technology developed capacity assist detection quickly realised 1937 towers originally consisting four transmitting steel receiving built timber their still cover stories made prevent speculation well stemming possibility learning about itself difficult high 1938 station tracked graf zeppelin flying along east purpose detect signals just spotted they under closer scrutiny hermann goering himself looked through pair binoculars while visiting radar been kept such closely guarded secret however really idea partly thanks defeated failure understand functions importance clearer ceased bomb relatively stage claiming progressed allies stronger position make bombing raids germany became this greatly improve accuracy which become major priority bomber command 1942 home excellent track successfully result nearest nothing remains after anti defences very disbanded retained battery only until 1950's 1950s warfare taken sinister turn form nuclear weapons quite obviously batteries icbm inter continental ballistic missile following threat posed royal observer corps it's function monitor aftermath 1962 post government cutbacks meant closed years later most removed seventies those remained carried military totally abandoned usaf began communications link bases throughout southern england great deal reconstruction phase ensure complied regulations location kent condition poor date visit plan video report other sites area post undergroundkent 2004 after communication dishes swingate ammunition stores snortal masts background receiver block tropo signal troop squadron sign place these road humps placed dish \",\" swingate post royal observer corps posts were used during cold period event nuclear attack three posted here time their duty pinpoint location detonation monitor it's power direction radioactive fallout each post telephone radio links main co-ordination centre this opened 1962 closed only years later october 1968 location dover kent condition poor date visit plan video report other sites area chain home station undergroundkent towers 2004 after communication dishes have been removed swingate ammunition stores bases receiving snortal masts background transmitter block tropo signal troop squadron sign still place \",\" shorts tunnel these tunnels were constructed extension existing factory 1941 building above ground considered imprudent vulnerability medway estuary attacks that housed workshop area both 100m long linked four traversing slightly shorter length brothers also large system raid shelter which comprised main some 300m traversed smaller connecting complex connected single approximately 400m location rochester condition poor date visit plan video report other sites area fort borstal horsted wildfire main entrance leading into undergroundkent factory passage about 200ft another part section yard leads some parts used workshops secure become storage bays during many passageways most site very condition sign public when typical junction smoking ventilation within \",\" alland grange chalk mine access this only possible after getting permission directly from farmer alland grange located thanet possibly used supply locally brick making later could well have been growing mushrooms storage during second world almost certain that people would these mines shelter manston airfield close aerial bombardment inevitable location condition very poor visit plan video report other sites area minster post chalk mine decontamination entrance tunnels collapsed unlined areas bricked section tunnel leads blocked long passageway more passageway part bricked area more views inside complex undergroundkent \",\" fort paragon margate near radar station dunkirk bofors tower called because that placed here protect from enemy aircraft also place lewis mounted tripod inside building manned guns location canterbury kent condition poor date visit plan video report other sites area undergroundkent entrance shelf tily lamp rare find shelters such this walls ceiling shelter made concrete cast against corrugated iron another passageway floor covered shingle secondary exit escape hatch filled with spoil \",\" manston decontamination area this building above ground although there underground bunker underneath which been capped still unclear decontamination process that designed anyone could give information about itself would very grateful during second world perceived threat hitler attack britain with strong enough centres such built contains tight doors it's excellent condition being until 1998 location isle thanet condition date visit plan video report other sites minster post alland grange chalk mine roof water tanks used supply undergroundkent entrance main block there windows these shutters have provided some ventilation toilet left heater right shower area cubicles total closer view showers showerheads visible larger storage stretchers shelves well pillows blankets emergency first labelled disaster pack also list contents \",\" margate lido lidos which were enclosed bathing pools became increasingly popular trend ever more sought after pastime victorian 1920's 1920s cliftonville completed cater popularity built existing clifton baths estate beneath many passageways used smugglers previous centuries underground complex consisted bars cafes indoor warm water pool with nearby changing facilities hugely from it's construction right through 1960's 1960s winter storm january 1978 destroyed pier also wreaked havoc particularly outdoor reconstruction work never even considered today faces almost certain demolition visit this site equipped detectors proved wise decision these actually went while there result fully explore some areas strong smell hydrogen sulphide location isle thanet condition very poor date visit 0606 plan video report more info this still main road 60's when they sadly tanks demolished somewhere underneath rubbish flight stairs lower section looking back towards tunnel main foyer ticket booth centre next ladder numbers lockers clearly visible here male area opposite cubicles giving idea just busy place once female window helped give illusion light space fresh shower available rinse salt sand sally port entrance sealed bath those wish cafe basque cabaret would have been decorated style pyrenees wood beams stone arches cave seen background undergroundkent \",\" slade school many luftwaffe bombers that were unable reach their target london would simply release bombs wherever they tonbridge directly luftwaffe's luftwaffes flight path this town huge risk quick access raid shelters vital schools such protection premises case there fact smaller since been used area through which plumbing heating school provided larger shelter remained untouched following only recently uncovered while building work undertaken resealed location condition poor date visit plan video report more info private land under escape hatch mechanism bottom have flipped open raid shelter with opening levers still good condition inside typical concrete cover structure accumulated rainwater filled over years average depth around three inches wooden shutter positioned close entrance water pump operated manually keep original hand rails show where steps work above caused structural damage undergroundkent \",\" outer bastion dover citadel designed last defence should remainder western heights defences fall enemy attack designs consists three redans western side single redan eastern flank there traces positions around well magazines barracks lies north rectangular feature made from self-contained areas both surrounded ditches interconnecting tunnels through which defenders could move part another without using outside ditch location condition good date visit plan fortifications this area well house outworks south flank casemates north archcliffe cells galleries breakwater detached entrance bastion undergroundkent tunnel that runs below recess lantern wall right musket gallery through passageway under these stairs then lead main coast nature work lime mortar been slowly dissolved over years formed stalactites stalagmites this magazines inside casemate spiral staircase would have deliberately backfilled inner sealed \",\" burham tunnel little information about this tunnel available example when built shut known access large chalk into hillside below bluebell hill approximately yards long good condition apart from finding back shafts access southern portal halfway along came wall just right crawl through then comes next obstacle which feet there ways either over under once past easily walk other location chatham condition very poor date visit plan video report more info mine private property inside mostly brick lined undergroundkent halfway come against that down shaft further another looking towards south north \",\" southwick ughq built 1870 fort portsdown hill forts designed protect vitally important naval harbour portsmouth however importance increased during second world when series tunnels were constructed beneath victorian fort these underground headquarters armed forces planning execution operation overlord allied invasion mainland europe d-day june 1944 this time there staff working remained into cold c-in-c home station known soviet intelligence result target assessment undertaken joint intelligence committee 1967 anticipated that would have been heavily attacked with nuclear weapons probably burst detonations today used airsoft storage hopes some sections restored their state location condition good date visit plan video report other sites area brockhurst inside complex undergroundkent \",\" lower mills mill tunnels network that were constructed early 19th century before during second world they used storage while walking around these very clear different historical phases construction seriously damaged fire march 1995 location dover condition good date visit plan video report other sites area upper mills limekiln street bond store tanks looking back towards entrance main markings wall left from time tunnel's concrete came away during inside older part complex this area hammonds access some parts tunnel still today inaccessible worn stairs lead this small room undergroundkent \",\" upper mills mill caves easily visible from road they situated directly behind petrol station they consist large u-shaped tunnel that entrances either cliff these tunnels have served many different purposes over time undoubtedly raid shelters during both world wars storage today lower still workshop space whereas upper level been used some considerable most lined with concrete major problem this saturated water several years huge fire left walls greatly weakened very unstable location dover condition good date visit plan video report other sites area lower mills limekiln street bond store just inside entrance above blast partition remains vent supported iron bars showing lining simply fallen away looking towards exit giving idea height complex undergroundkent \",\" limekiln street bond store situated west mills complex place where goods were securely stored until duty paid them system similar customs this dates from around nineteenth century entire undergone numerous modifications over years each area adapted different uses this great variation structure design that seen throughout these western tunnels have second world crucial which they differ rest most tunnel lined with concrete major problem saturated water several huge fire lower left walls greatly weakened they very unstable location dover condition good date visit plan video report also kwon west other sites area upper lower view within taking various phases building bare chalk brick strengthening undergroundkent room reaches 75ft high inside main western mill would originally been levels spaces held joists flooring upper level original pick marks made during construction still visible entrance more views nineteenth architecture arch provided support stability \",\" snape mine area around snape wood been known centuries rich iron remained centre extraction smelting until advent industrial revolution traces earlier operations have vanished 1875 seam discovered opened extract after several adits draw shafts stretching hundred feet excavated removed abandoned shaft kurg 2002 other entrances were then located location condition good date visit plan video report other sites area this ladder goes across full water difficult ascertain deep undergroundkent this point over layer silt built years that comes from nearby railway line bands very clear walls cart tracks still place floor \",\" hangmans wood denehole site medieval chalk mine ground here feet flood gravels covering about 50ft thanet sands which upper chalk with distinctive black flints many places roof breaks through into beds above showing original land surface when exposed eroded then recovered further deposition lowest part foot thickness called 'bullhead bullhead bed' this consists iron rich clays very large lumps flint also possible this section that itself solution holes within have subsequently been filled these later tertiary deposits deneholes consist circular shaft diameter sunk sand until meets then series chambers usually radiate away from central hauled buckets bags ropes left distinct marks edges where they sawn leading chamber roofs once gets haul like another identical denehole close-by some point distant past various linked together crawls passages make continuous network drill sort used probe ahead there voids worth digging location essex condition good date visit plan video report other sites area sand undergroundkent abseiling down bottom some parts tight here routes soft reach beyond graffiti dated 1905 1858 shafts blocked slowly over time explorer connecting tunnels \",\" marden mine mine into upper greensand north surrey this long varied history undergone variety uses brief started 19thc firestone quarry virtually identical contemporary with godstone main series just mile west late like used mushroom farm this ceased during great when appears that workers were french returned home fight some clearly come back site subsequently reopened mining hearthstone essentially same rock quarried rather different whitening agent doorsteps hearths popular demand from right through world style working very large blocks masonry passages tend square stable hearthstone mined lumps using hammers wedges rough along natural joints result usually less than stone note building whereas pigment effectively making mineral which definition quarries mines even though they after during acquired james gardner chislehurst cave fame partly converted secure bonded store western half sealed heavy duty doors many remain today meanwhile eastern still continued until outcrop highly variable geology noticeably softer direct consequence methods employed least mines parts side already lost forever massive collapses ‘lost' ‘lost 1979 members unit later become wcms air-shaft re-opened present entrance built early 1980s look good grace current landowner securely gated hibernaculum however access possible summer months location condition date visit plan video more information here also area bedlams piles jubilee tracking undergroundkent part main route known passage secured part haulage weak dividing walls between converging galleries \",\" bedlams mine site several names bank most commonly used fact refers surface area around entrance correct name chaldon quarries underground stone quarry mines specifically where minerals extracted workings always called quarries worked ‘firestone' ‘firestone building before advent railways this best available home counties freestone which means that split direction been since roman times particularly normans late medieval builders many prestige buildings windsor castle london bridge hampton court palace other high status throughout southeast eastern working youngest years progressively older west certainly tudor perhaps even late medieval vast with over miles surveyed open passage probably much again backfilled from stretch mile east beneath north downs galleries head into hill following natural gradient rocks gentle slope degrees terminate 3-400 metres descend original water table preventing further extraction western easily reached east very long quite arduous trip navigation extremely complex anyone unfamiliar passages same easy lost within labyrinth reason access without guide recommended interested finding more about fascinating wish arrange visit please contact trips organiser wealden cave mine society website wcms within wcms archives will find literally hundreds articles others aspects exploration archaeology discussed full location surrey condition date visit plan video more information here also marden godstone upper greensand itself below chalk undergroundkent roofs typically letterbox this small hole leading from main haulage route cuts across another part some large stalactites drip curtains ‘alien chamber' chamber during construction early 1970's 1970s filled \",\" godstone mine today amalgamation distinct quarries into large complex southern series oldest starting from 18thc three firestone what sawmills roman road jones early 19thc quarried much further larger post industrial scale opening quarry main series itself firestone partly building stone also furnaces stands high-heat very well grain direction termed free-stone before revolution coming railways this best southeast without significant transport problems cost once better could brought away more easily cheaply demand faded platerails croydon merstham tram-road 1805-c1830 have been relaid within quarry haulage making underground sites remaining with situ plateways quarrying declined later half superceded part hearthstone mining reworking inferior beds waste different step whitening blocks from around 1890 until site used french mushroom growers left their mark many these seem during graffiti neighbouring suggests that some come back there suggestion dept considered explosive storage after there another attempt growing mushrooms successful shelter officially although known local people ‘caves' ‘caves various times since accessible casual visitors other sealed today gated looked after wealden cave mine society wcms hibernating bats access restricted winter time close liason group visits arranged summertime groups genuine interest workings many others aspects exploration archaeology discussed full location surrey condition date visit plan more information here also area marden bedlams western passage roman road undergroundkent looking main drag just over collapse edge sawmills this areas jones' looking down towards lost somewhere room guide narrow carbide 1960's 1960s \",\" crete road victorian reservoir construction work reservoir completed july 1866 used supply nearby soft drink factory folkestone with water there tanks each approximately 88ft long lined cement location condition sealed date visit plan video report more info private property undergroundkent views inside over looking outlet inlet valve \",\" truleigh hill rotor station rafthe rotor network succeeded second world radar system providing with much needed advanced detection soviet nuclear programme further than west realised first test 1949 confirmed that union power early weapons could only delivered aeroplane early 1957 ussr developed icbm deliverable radar able deal this weapon rotor introduced maintained same type connecting structure maintain command control there were fewer stations under capable covering miles level feet provide effective warning attack three stages which commonly referred correspond technological advancements made ability dealt installation technology often incorporating existing wwii structures this frequently meant using chain home proved highly battle britain 1940 buildings constructed categorised according their purpose labelled from followed basic design gave them appearance normal civilian house usually bungalow below underground complex size dictated station each served function incoming bombers icbms time possible would have approximately minutes maximum probably been more like location sussex condition very poor date visit plan video report more info base emergency exit leading into next page undergroundkent main corridor switch gear room left conditioning plant operation filters service hatch rest blast doors \",\" lawrence railway tunnel isle wight newport godshill opened 1897 when station first operated central until 1913 they purchased outright however this part railway very successful 1927 been downgraded unstaffed that time railways were southern which became region british railways after nationalisation 1948 increase buses more people using cars began sharp decline number train passengers island branch closed 1952 left become overgrown 1960's 1960s still possible where track platform easily visible building place intact infilled same level pictures here tunnel west merston ventnor line along stood location condition good date visit plan report other sites area yaverland battery golden hill fort bembridge puckpool high down rocket test site entrance undergroundkent inside \",\" fort bembridge 1860's 1860s royal commission resulted massive fort building program isle wight exception this east side island constructed keep four coastal batteries sandown also designed final retreat been invaded hexagonal design surrounded ditch original showed single caponiers during actual construction these were replaced with double ones originally armed 7-inch rbls which 1893 64pdr rmls inch removed 1900 three years later between 1880 used experimental test facility anti-torpedo anti-submarine devices remainder became barrack accommodation store during second world co-ordinating point nodes point culver down this battery observation post position finding cell addition allen williams turrets relinquished 1948 fell into state serious disrepair heavily vandalised until local council purchased 1965 sold national trust continue have management site agricultural company some other previous commercial left mark covering great deal features however group volunteers working closely attempting rectify restore feature back their location condition good date visit plan report other sites area yaverland golden hill lawrence railway tunnel puckpool ventnor high rocket test site entrance undergroundkent would give flanking fire accommodation area casemates from parade ground inside fort's forts caponier laboratory roof turret machine mounting spigot mortar stores \",\" yaverland battery isle wight constructed early 1860's 1860s battery situated close sandown south wight originally armed with guns there ample magazine provision entire enclosed looped carnot wall caponiers projected into ditch rear were barracks which could garrison including officers each more designed coastal defence providing support nearby fort some removed replaced searchlights role changed during second world reinstated installation 6-inch mark these remained place until later added artillery practice 1956 disbanding coastal atrillery sold private buyer have been demolished parts still survive visible  yaverland part holiday home site recent excavation work owners uncovered some excellent features superbly preserved magazines shell hoists location condition good date visit plan report other sites area golden hill bembridge lawrence railway tunnel puckpool ventnor high down rocket test site exterior walls fort this number emplacement undergroundkent hoist cartridge store shell looking shifting lobby lift doors cartridge store \",\" high down rocket test site isle wight needles battery originally completed 1895 fully manned until 1918 brought back into action during second world 1954 arguably most interesting phase began this time britain successfully exploded nuclear thermonuclear hydrogen h-bombs looking delivery system means inter continental ballistic missile icbm british programme codenamed blue streak great deal experimental work needed done rocket science still relatively that designed developed tested which built over complex buildings previously made known black knight this facility allowed project continue development prior them being shipped woomera australia further testing success rockets expand space technology 1971 britain's britains first only all-british satellite prospero launched thanks closed july 1962 after political support waned clear agreement reached today site care national trust location wight condition good date visit plan report other sites area yaverland golden hill fort bembridge lawrence railway tunnel puckpool ventnor undergroundkent \",\" golden hill fort isle wight hexagonal shape construction took place between 1863 1868 main purpose defensible barracks keep batteries defending needles passage designed withstand sustained bombardment provided barrack accommodation gunners nearby cliff warden point well being central point troops should enemy force have landed island planned light guns roof fort completion armed with 40pr rbls ditch protected caponiers counterscarp galleries many forts changed throughout active 1888 became gunnery school during first world infantry training depot british canadian during second after fell into disuse sold 1962 various industrial commercial uses currently converted luxury apartments location condition good date visit plan report other sites area yaverland battery bembridge lawrence railway tunnel puckpool ventnor high down rocket test site renovation work carried exterior undergroundkent conversion casemates modern high spec interior newly restored inside underway original brickwork within casemate \",\" uckpool battery isle wight construction began puckpool mortar 1863 designed armed with guns mortars necessary barrack accommodation crews this original design modified 1864 become battery heaviest deemed unnecessary completed 1865 only reconsidered again following year time proposed that inch would placed rows behind other traverse between each pair reconstructed barracks were constructed after 1873 four rmls fitted assist defence spithead removed 1887 moved parapet revised give them higher angle fire thus greater idea abandoned 1888 1901 upgraded barbette positions also place during first world used depot coast gunners transferring western front after into care maintenance last withdrawn 1927 sold local council 1928 turned public garden although military final second when name medina train fleet back location condition good date visit plan report other sites area yaverland golden hill fort bembridge lawrence railway tunnel ventnor high down rocket test site undergroundkent \",\" culver down battery isle wight battery proposed early 1887 order prevent ships from being able bring their firepower bear batteries yaverland redcliff although design modified 1889 still built eventually 1904 consisted guns underground magazines were between emplacements rear secured with unclimbable fence ammunition these stored bembridge fort command post same building port signal station itself modification 1922 gave greater elevation range 1927 system fortress plotting tested armament place outbreak second world 1942 night role ended which time chain home radar station been just east after added practice shoots inch also used site sold subsequently filled recently excavation work revealed administrative buildings have demolished location condition good date visit plan report other sites area golden hill lawrence railway tunnel puckpool ventnor high rocket test site undergroundkent \",\" ventnor chain home station radar developed during 1930's 1930s warning against approaching enemy aircraft network radar stations built around country provide defensive system covering possible approaches this known started 1937 while construction main station continued temporary with other experimental equipment gave immediate cover full alert august 1939 three 365ft tall transmitter towers were four receiver 1940 bombed luftwaffe severely damaged rendering inoperable while action bembridge until ready back into operation this attack which also resulted development reserve facilities buried reserves site although these well 1942 location isle wight condition good date visit plan report other sites area yaverland battery golden hill fort lawrence railway tunnel puckpool high down rocket test site home undergroundkent \",\" fort brockhurst construction began 1858 designed five forts built defend western approaches portsmouth harbour entrance across moat leads through circular keep then parade ground this area clear polygonal shape fort large earth ramps which terreplein accessed main magazines officer accommodation casemated barracks around entire 1893 armed with guns pdrs inch rbls headquarters many different regiments from 1900 onwards acted demobilisation centre first world remained army until 1957 after sold english heritage acquired 1984 where acts museum training storage space location iportsmouth condition good date visit plan report other sites area southwick ughq courtyard undergroundkent looking into overlooking gorge flank casemates south casemates access tunnel centre caponier soldiers latrines \",\" russian submarine u-475 black widow medway also known foxtrot b-39 nato this submarine prowled worlds oceans years built 1967 active service until 1994 arrived london under command captain vitalij burda commanded ship stayed long's longs wharf thames barrier museum 1998 when moved folkestone open 2004 river rochester currently waiting re-homed hopefully opened public again unfortunately listing side there hole specialists have been called over from america will able problem soon location condition good date visit plan report more information here soviet undergroundkent \",\" shaft dover purpose this cave complete mystery there quite ideas such fisherman's fishermans there shaft approximately 14ft deep that could have contained fresh water metal doors inside from sunken ship called preussen which sunk 1910 when involved collision with steamer brighton near beachy head towed towards portsmouth clear would able decided make instead finally foundered rocks below south foreland location isle wight condition good date visit plan report other sites area down langdon battery than turn right entrance 15ft above beach high tide mark cliff face corridor looking entrance metal plates view main room tiled floor covered rust still part ladder rungs leading down undergroundkent \",\" tunbridge wells battle headquarters construction these tunnels been completed 1941 although there direct reference their purpose locals held with rumour that they were montgomery's montgomerys residence also nearby should german invasion britain take place there evidence substantiate this however these continuously flooded only because heat wave excessively long period water levels have dropped substantially even could access very short distance still five feet places good deal time roof location condition very poor date visit plan report other sites area blockhouses undergroundkent mark entrance current owner spent sealing main passageway level unusually \",\" guildford foxenden quarry raid shelter with frequency intensity german raids increasing public safety protection became ever more crucial local authorities began programme building underground shelters provide with easily accessible from bombs many towns numerous smaller exception however ferocity regularity called much larger shelter constructed quickly possible builders were very fortunate disused chalk quarry just outside town centre presented them ideal location this deep once completed could accommodate 1000 people provided sleeping areas first provision clean sanitary such large amount being close also reached local population going against nazi germany 1944 threat diminished markedly need longer existed result closed only recently been reopened viewing years being sealed saved vandalism that befallen many contemporary retains original features signs walls toilets removal bunks gives excellent idea would have those taking during location surrey condition good date visit plan report other sites area raid sign still clearly readable undergroundkent direction exit legible main tunnels ladies block place unlined passageways part brick lined complex escape vent shafts wooden props unfinished section first post \",\" sheerness docks isle sheppey been crucial maritime area almost five hundred years situated thames estuary realised seventeeth century that great strategic importance hostile naval force could gain control would then have access royal dockyard chatham river medway into london itself vital dockyards deptford woolwich maintaining therefore recognised being essential admiralty during first half seventeenth little more than uninhabited marshland rife with ague form malaria living conditions were very poor even fresh water brought working there lived hulks ships these sank they infilled earth ground slowly created which build dockyard 1665 party from including famous diarist samuel pepys arrived survey begin their plans building work commenced quickly progressed defences complete when attacking dutch fleet 1667 after brief exchange fire incomplete fort surrendered proceeded leaving navy's navys flagship charles sailed back holland destroying construction work undertaken embarrassment this attack meant reconstruction began immediately 1672 fort adjacent reclaimed land built continued away nineteenth danger become unstable 1813 major rebuild yard using protected behind granite wall soft foundations many difficulties 1823 three small basin boat completed next ancillary buildings continuing several industrial revolution took hold sail replaced steam underwent changes keep technology time ensure maintained role navy defence also redressed 1850 battery place followed 1855 martello-style tower 1877 completion garrison point changed 1892 gunnery school established originally 1821 location condition good date visit plan report other sites area rnxs emergency port control fletcher battery barton inside docks undergroundkent office 1828 rennie this guard house police steam powered sawmill 1856-58 greene archway 1824-30 edward hall architect store 1856-60 william scamp boat background olau line ferry terminal closed number today \",\" monkton farleigh sidings down sidings used during transport ammunition from depot tunnel approximately mile long first half covered this steady incline before steep hill before built transported aerial ropeway location wiltshire condition good date visit plan report other sites area underground ammunition depot ridge quarry westwood mine transit shed would have platforms easier loading waiting trains undergroundkent pillbox platform these tracks looking back shaft down main part conveyor belt \",\" freestone quarry bath stone long been renowned worldwide it's excellent building properties some considerable time quarrying this large vital industry city such operation runs approximately miles giving good indication scale these quarries after mining operations finished many areas were converted military during second world location wiltshire condition good date visit plan report other sites area monkton farleigh underground ammunition depot ridge westwood mine sidings concrete supports place main supply though into section undergroundkent cathedral inside part cliftworks tunnel view high tunnels wells \",\" westwood quarry royal enfield this structure began tunnel system quarry during second world served purposes section housed national treasures great value rumoured that crown jewels were kept here with area totally secure even boasting earliest smoke detectors accessible another used building motor cycles people worked both sections common entrance motorbikes 'shadow' shadow factories protecting vital efforts from bombing short brothers rover three main underground they known shorts drakelowe still until beginning 90's location isle wight condition poor date visit plan report other sites area monkton farleigh underground ammunition depot ridge mine sidings ‘emergency exit' exit sign pointing undergroundkent shared slope shaft terminus between ‘arc mine' ‘wansdyke security' security substation upper charging station testing shack located middle mine hand washing sinks more views inside complex lower many fittings place part wwii substation \",\" ridge quarry originally small bathstone quarry wiltshire used ammo storage during first world later expanded same purpose second ideal location given it's existing tramway that linked with nearby railway therefore provided excellent means transportation from addition ample space room store well over tons spare some 2000 army there were very surface features buildings only substantial left standing loading other wooden housing military police personnel location condition poor date visit plan report other sites area monkton farleigh underground ammunition depot westwood mine sidings looking back blocked slope shaft bottom number looking down main haulage lonely support doing keep roof others rotted about this just remains lift totally munitions here outline where narrow gauge taking into their respective bays pick judding marks stone blocks sort heavy machinery laying around many nuts bolts which size fist out-line soldier uniform chiselled rock pillars comic drawing saying 'who searched you' must have been 1940's 1940s refers worry spies undergroundkent \",\" monkton farleigh underground ammunition depot site abandoned underground quarry lies biggest ammunition depot europe started approximately 1936 used right until 1950's 1950s expenditure 1940's 1940s alone estimated region million pounds money roughly billion now-a-days simply enormous covering some acres during heyday could house over tons ammo entire above ground constructed such that would seen enemy reconnaissance trains brought enter tunnel hill nearby then apparently exit normal however different train original still unloading undetectable aircraft this delivered aerial ropeway into various sites within complex through system narrow gauge railway tracks conveyor belts also were shafts with ventilation facilitated huge fans workshops power plants certain areas de-contamination centres location wiltshire condition poor date visit plan report other sites area ridge quarry westwood mine sidings main haulage ways looking district slope shaft conveyor remains conditioning store rooms decontamination centre view workings undergroundkent \",\" westerham mines there entrances these mines although them blocked this because reserve access permission only were originally excavate sandstone ragstone that many local buildings constructed nearby church certainly those tunnel complex been backfilled passages more than four feet high some even lower location condition good date visit plan report other sites area picture shows distinctive layers more views inside mine undergroundkent \",\" llanberis ammo store disused slate quarry near north wales proved ideal site ammunition outbreak world procured storage bombs already deep pits place linked connecting tunnels rails into lower levels making deliveries much easier quicker electric lifts moved from level upwards abundant broken around area utilised provide overhead raid protection piling depth feet collapse 1942 engulfed major part after which llaberis longer used large incendiary devices were kept here remainder finally closed 1956 1960's 1960s 70's concerted effort made entirely clear buried explosives still including great many found bottom lake location condition good date visit plan report other sites area cleared collapsed railway loading platforms loading bays steps leading upper section floor inside rear entrance undergroundkent \",\" coalhouse fort area essex coast which coalhouse fort stands today been strategically important back iron with earthworks dating that period suggesting need defend thames estuary existed even into britain's britains history present victorian construction designed against french conjunction shornemead cliffe forts construction began early 1860's 1860s original plan altered several times throughout building fort final design seen consists granite-faced casemates iron shields open battery up-river rear barracks magazines basement level directly beneath guns they served ditches inner defended caponiers would have allowed troops very effectively ever fallen under direct attack themselves bullet-proof shutters across windows loopholes pierced these small arms fire from attacking army 20th century world wars brought rendered further alterations necessary anti-aircraft searchlights were added 1914 became examination battery ensuring enemy ships could enter ships entering identify those failed stop risk having warning shot fired them department decommissioned sold 1949 1962 came management thurrock borough council like many magnificent structures this sadly neglected decay inevitable vandalism taken their toll fortunately being restored project public designated days location condition very good date visit plan video more info undergroundkent exterior showing ports view ramp leading emplacements full gauge railway come good when transferred structure centre 1903 replaced 12-pdr part kitchen showers toilet original cookers royal navy royal marines emblems artillery grenade emblem found officers mess overlooking courtyard housed search lights emplacement this where depression position finder stored \",\" undergroundkent site list napoleonic palmerston south east area archcliffe cells archciffe galleries north casemates officers mess outer bastion well house western outworks detached drop redoubt dymchurch demi fort burgoyne hudsons entrance dover breakwater turret medway darnet horsted borstal prince william barracks sunken courtyard caponier grain tower battery cliffe dummy shornemead sheppey barton point centre fletcher battey garrison upper level lower raid shelters athol terrace- cliff buckland school clarendon grammar shelter ellington girls paragon shorts tunnel guildford-tunnel-east ramsgate tunnels slade trevanion caves noah's noahs henley cable works northfleet auxiliary buildings hougham power distribution room manston decontamination langdon lights battle headquarters canterbury wildfire tunbridge wells underground sarre brigade bunkers fervent lydden remembrance bunker chain home stations dunkirk station buried reserve bofors swingate command dumpy castle cold deep hole long hill foreland batteries magazines magazine margarets martins wanstone plotting rooms spout forts knock john maunsell army tongue sands minster post sheerness emergency port control southern water miscellaneous railway channel 1880 attempt alland grange chalk mine burham cottage crete road reservoir eastry shaft lido clifton bath cave limekiln street bond store mills u-475 black widow seaweed docks westerham mines snowdown colliery davington light bourne park golgotha etchinghill essex coalhouse beacon weald epping hangmans wood deneholes surrey bedlams brooklands foxenden godstone main series marden ashley coulsdon sussex wartling rotor radar snape mine truleigh rotor crowborough rghq hampshire pyestock isle wight golden bembridge lawrence ventnor high down rocket test puckpool mortar culver southwick ughq brockhurst wales llanberis ammo west country freestone farleigh sidings monkton ridge quarry westwood midlands drakelow outside kent videos reports yaverland garrision rail \",\" dover grammar school raid shelter british government watched germany's germanys capacity wage increase rapidly throughout 1930's 1930s fully expected luftwaffe begin bombing britain's britains cities very early stage this would large numbers civilians directly danger evacuation clearly safest option government propose even before began evacuation schemes were planned accepted citizen's citizens month after passed still come thousands return home many children returned found their schools being used emergency armed services with education risk some re-opened decided that school could only open adequate raid protection many shelters built budget some little more than reinforced rooms others purpose structures comprised trenches with secure roofs walls soil sandbags location dover condition date visit 2007 plan video report more info private property entrances shelter there five undergroundkent main entrance inside typical concrete cover structure fire hose left place toilet cubicles privacy have been given curtains back inside main tunnel good condition apart from spots door rotted right water pump keep \",\" fort horsted britain's britains defences face possible land based invasion result huge amount fortification work began across southern britain paying close attention protection medway area especially vitally important dockyard chatham arms race time very much centred naval arena warfare with construction ironclad warships seen symbols military political economic strength would have played crucial role maintenance these leviathans some defensive works were already place such impressive fort amherst royal commission felt eastern approaches adequately protected five forts 1880 theses named horsted luton bridgewoods darland twydall their france longer posing threat however germany having defeated franco-prussian 1870 firmly established itself major european power largest designed defend chatham's chathams many changes made original design since inception 1860's 1860s most noticeably does caponiers other exposed external features clearly visible earlier drop redoubt dover this development high explosive shells intervening period between eventual some twenty years later finished 1889 never received full compliment armament 1902 mounted seven machine guns polygonal surrounded deep ditch revetted concrete relatively material that companion spaced three miles apart which maximum range however once again speed artillery outstripped building completion could fire well beyond this there question proved obstacle invading force overcome order advance further shape almost arrowhead when from above provided angles along counterscarp galleries within being contained water tanks reservoir under rampart right flank these ensured supplies expense magazines ammunition hoists throughout interesting note main front earth covered expense prepared positions service remain today particularly second world remained hands until 1960's 1960s after various commercial uses including tyre company filled vast areas worn tyres 1976 broke many burned least weeks there still reminders extensive smoke damage remaining wooden structures door frames today enjoying resurgence been cleaned considerably casemates converted supporting local small businesses scheduled ancient monument essential future constant daily basis long term structural safety assured location condition very good date visit plan report other sites area borstal wildfire shorts tunnel entrance once inside doors leads directly through interior left magazine leading looking towards left gorge shelter casemates cartridge shell stores while structurally sound lost facades front stairs lead down double gallery recesses rifle loops rear inside four facing further round another undergroundkent \",\" hougham battery plotting room built correlate information guns plotting room hougham would have served nearby battery which consisted placements other smaller complex consists nine rooms still very good condition only part missing ventilation system been totally removed probably scrap location dover condition very poor date visit plan video report other sites area lydden spout plotting room escape hatch undergroundkent looking down shaft bottom steel blast door into back main plinths supported table hole above where entrance corridor coat hangers place \",\" langdon seachlights base cliffs dover there were three searchlight batteries built into lights enabled ship trying enter illuminated while checked only left cliff fall location condition good date visit plan video other sites area undergroundkent inside first looking across channel second view along beach more views battery \",\" lydden spout plotting room situated lydden spout battery this plotting room been sealed over thirty years interior excellent condition there still some contemporary items inside walls pristine very little evidence deterioration considering amount time abandoned even paint ventilation system mostly intact location dover condition very poor date visit plan video report other sites area hougham plotting room escape hatch 2002 undergroundkent looking down shaft main crates floor filters back light fixtures place fuse boxes electrical cables cloakroom fixtures switches \",\" martin's martins battery originally constructed during victorian extensively rebuilt updated second world rear positions brickwork still clearly visible along with contemporary expense magazines directly behind battery deep shelter this originally main magazine supply guns lengthened become poor condition many parts having suffered from smoke damage collapse location dover condition good date visit plan video other sites area looking down first flight stairs undergroundkent second longer tunnel which been severely damaged wash area junction spur both tunnels meet here tunnel leads secondary exit back \",\" ashley road raid shelter epsom raid shelter still very good condition with exception graffiti first side rooms there features purposes some these open conjecture feel that entrance tunnel built before second world curved brickwork especially ceiling normally found victorian structures going further into walls soon give corrugated iron concrete location condition poor date visit plan report other sites area accessible original main mesh used instead support contain falling kitchen serving hatch toilet block medical centre corrugated cold storage section undergroundkent \",\" coulsdon raid shelter possible that this raid shelter built local residents nearby cane hill mental hospital straight after workshop area cars other vehicles ditch original entrance backfilled location isle wight condition poor date visit plan report other sites area main undergroundkent toilet than used \",\" prince william barracks fort amherst accessible ditch would have played important part defence system should ever been attacked damage sustained during second world raid location medway condition good date visit 2001 plan report other sites area sunken courtyard caponier darnet view barracks from main showing damage exterior walls fort this number emplacement both upper lower floor stairs section part fireplace direct 500lb german bomb undergroundkent \",\" sunken courtyard fort amherst further round ditch much more spacious than first appears with amount ventilation holes each room likely that larger guns well muskets would have been here vents were necessary stop build smoke from firing cannons location medway condition good date visit 2001 plan report other sites area prince william barracks caponier darnet firing slits port storage area barrack rooms rear main passageway undergroundkent \",\" caponier fort amherst this caponier ditch designed control prevent movement enemy troops through system soldiers manning could have reached this tunnel from redoubt stairways prince wales bastion unfortunately these been blocked site tennis club location medway condition good date visit 2001 plan report other sites area william barracks sunken courtyard darnet entrance fact port facing into undergroundkent second staircases leading upper gallery firing upper floor steep passageway \",\" trevanion caves-east cliff east cliff caves consist three separate tunnels linking together link with guildford athol terrace were used shelters location dover condition good date visit 2001 plan report other sites area caves floors covered concrete main tunnel structural support needed ceiling this area structure within undergroundkent \",\" undergroundkent site search site \");");
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d.write("var linkMap = new Array(\"index.html\",\"crowborough_bunker.htm\",\"pyestock.htm\",\"wt_henley_cable_works_air_raid_shelter.htm\",\"drakelow_tunnels.htm\",\"maunsell_towers.htm\",\"deep_shelter_one.htm\",\"hmswildfire.htm\",\"eastrymine.htm\",\"langdon_hole_deep_shelter.htm\",\"grain_tower_battery.htm\",\"fan_bay_deep_shelter.htm\",\"detached_bastion.htm\",\"cliffe_fort.htm\",\"hms_fervent.htm\",\"contact.html\",\"dymchurch_redoubt.htm\",\"athol_terrace.htm\",\"north_entrance.htm\",\"archcliffe_cell.htm\",\"channel_tunnel.htm\",\"wartling.htm\",\"wartling_bunker_page2.htm\",\"north_front_casemates.htm\",\"the_citadel.htm\",\"fort_burgoyne.htm\",\"fort_burgoyne_page_2.htm\",\"links.htm\",\"fort_knock_john.htm\",\"plans.htm\",\"drop_redoubt.htm\",\"sarre_brigade_headquarters.htm\",\"the_well_house.htm\",\"tongue_sands.htm\",\"south_front_casemates.htm\",\"archcliffe_galleries.htm\",\"western_outworks.htm\",\"snowdown_colliery.htm\",\"centre_bastion_battery.htm\",\"north_weald_redoubt.htm\",\"beacon_hill_fort.htm\",\"long_hill_tunnel.htm\",\"grain_dummy_battery.htm\",\"dover_turret.htm\",\"noahs_ark_tunnel.htm\",\"123.htm\",\"ramsgate_tunnels.htm\",\"barton_point_fort.htm\",\"grain_fort.htm\",\"garrison_point_fort.htm\",\"garrison_point_fort_lower_level.htm\",\"rnxs_emergency_port_control.htm\",\"fletcher_battery.htm\",\"shornemead_fort.htm\",\"dover_harbour_breakwater.htm\",\"canterbury_battle_headquarters.htm\",\"southernwater_emergency_control.htm\",\"hoo_fort.htm\",\"darnet_fort.htm\",\"hudsons_bastion.htm\",\"buckland_school_air_raid_shelter.htm\",\"kent_fortifications.htm\",\"fort_borstal.htm\",\"ellington_girls_school.htm\",\"clarendon_school_air_raid_shelter.htm\",\"minster_roc_post.htm\",\"deep_shelter_two.htm\",\"no4_gun_magazine.htm\",\"no1_gun_magazine.htm\",\"south_foreland_plotting_room_two.htm\",\"south_foreland_plotting_room_one.htm\",\"langdon_battery.htm\",\"brooklands_shelter.htm\",\"hougham_battery.htm\",\"east_demi_bastion.htm\",\"wanstone_battery.htm\",\"z_rocket.htm\",\"dunkirk_chain_home_station.htm\",\"dunkirk_bofors_tower.htm\",\"dunkirk_buried_reserve.htm\",\"lydden_bunkers.htm\",\"elham_valley_railway.htm\",\"etchinghill_railway_tunnel.htm\",\"rd_of_remembrance_bunker.htm\",\"swingate_chain_home_station.htm\",\"swingate_roc_post.htm\",\"shorts_tunnel.htm\",\"alland_grange_chalk_mine.htm\",\"fort_paragon.htm\",\"raf_manston_decontamination_area.htm\",\"lido_margate.htm\",\"slade_school_air_raid_shelter.htm\",\"outer_bastion.htm\",\"burham_tunnel.htm\",\"southwick.htm\",\"lower_oil_mills.htm\",\"upper_oil_mills.htm\",\"limekiln_street_bond_store.htm\",\"snapemine.htm\",\"hangmans_wood.htm\",\"marden_mine.htm\",\"bedlams_mine.htm\",\"godstone_mine.htm\",\"crete_road_reservoir.htm\",\"truleigh_hill_bunker.htm\",\"st_lawrence_railway_tunnel.htm\",\"fort_bembridge.htm\",\"yaverland_battery.htm\",\"isle_of_wight_rocket_site.htm\",\"golden_hill_fort.htm\",\"puckpool_mortar_battery.htm\",\"culver_battery.htm\",\"ventnor_radar_station.htm\",\"fort_brockhurst.htm\",\"russian_submarine.htm\",\"fan_bay_shaft.htm\",\"tunbridge_wells_headquartersa.htm\",\"foxenden_air_raid_shelter.htm\",\"sheerness_docks.htm\",\"farleigh_down_sidings.htm\",\"box_freestone_mine.htm\",\"westwood_quarry.htm\",\"ridge_quarry.htm\",\"monkton_farleigh_ammo.htm\",\"westerham_mine.htm\",\"llanberis_ammo_store.htm\",\"coalhouse_fort.htm\",\"page128.html\",\"dover_grammar_school_air_raid_shelter.htm\",\"fort_horsted.htm\",\"hougham_battery_plotting_room.htm\",\"langdon_lights.htm\",\"lydden_spout_plotting_room.htm\",\"st_martins_battery.htm\",\"ashley_road_air_shelter.htm\",\"coulsdon_bunker.htm\",\"prince_william_barracks.htm\",\"sunken_courtyard.htm\",\"caponier.htm\",\"trevanion_caves.htm\",\"site search.htm\");");
d.write("var preMap = new Array(\"Underground Kent is not a club or organisation – it's a collection of people interested in exploring and documenting underground and military sites in Kent  We work closely with many organisations and\",\"CROWBOROUGH - RGHQ 6 1   ASPIDISTRA   The site of this bunker in Sussex was originally built in the Second World War to house a broadcasting transmitter  which soon became known as Aspidistra  The BBC\",\"Pyestock  testing facility for gas turbines  The site at Pyestock began to be developed in the 1930s as war seemed inevitable  It was a top secret facility into the research and design of jet engines \",\"W T Henley   AEI Cable Works and Air Raid Shelter  Northfleet The company W T Henley has always been highly regarded for the manufacture of cable and electrical components and was clearly the company \",\"Drakelow Tunnels This complex of tunnels covers over 3 miles and was started in 1941 as an underground factory for the Rover Car Company  who were manufacturing aeroplane engines at the time   Within \",\"RED SANDS SEA FORT AND SHIVERING SANDS FORT The Thames Estuary Army Forts were constructed in 1942 to a design by Guy Maunsell  following the successful construction and deployment of the Naval Sea Fo\",\"South Foreland Battery Deep Shelter  This is the first of the two deep shelters that were built at South Foreland  It was probably used by the people who manned the nearby plotting rooms as well as gu\",\"HMS WILDFIRE  This was a organised trip between KURG  Subbrit and Canterbury archaeology society    These tunnels were originally constructed in the 1930s  reputedly by Cornish tin miners  Lying some \",\"Eastry Chalk Mine Eastry Chalk Mine was started in 1811 for a lime burning business and remained in production until 1914  Access to the mine was originally via a shaft  but as the mine developed  a s\",\"Langdon Deep ShELTER Langdon Hole is an underground system which has been sealed since 1979  called   Dumpy B       Dumpy A  being Long Hill underground radio station   Which was a alternative site fo\",\"Grain tower battery The original structure at Grain Tower  built in 1855  was based on the earlier Martello Towers that were first constructed as a defence against Napoleon in the early 19th century  \",\"Fan bay deep shelter This shelter is at the site of Fan Bay Battery  a WWII site originally comprising 3 x 6  guns with associated magazines  shelters  plotting room  administration and accommodation \",\"Detached bastion The The North Centre and Detached Bastions are located between the Drop Redoubt and the Citadel on the Western Heights   Their purpose was to assist in defending the northern approach\",\"cliffe fort Built in the 1860's  Cliffe Fort is one of the three Thames Side Forts that were designed to defend that Thames Estuary  It was also built to work in conjunction with Coalhouse Fort in Ess\",\"hms fervent This naval reserve was used before the war for the Contraband Control Service and was commissioned as a shore base in October 1939  With the advent of war and the new role for HMS Fervent \",\"Contact We want to be responsive to your questions or issues  Please help us by filling out the necessary information in the areas below  Please note it can take up to 48 hrs to answer your questions \",\"Dymchurch Redoubt Built in 1805  Dymchurch Redoubt forms one end of the Martello Tower system and was originally armed with eleven 24-pounder guns  The Redoubt is circular in shape and is 220ft across\",\"athol terrace Dover was subject to air raids and shelling from the cross-channel guns from the Nazi occupied French coast  Civilian protection from this bombardment was paramount and at Athol Terrace \",\"north entrance The weakest link in fortress defence is often the entrances  so it is hardly surprising that much ingenuity goes into their design  The North Entrance to the Western Heights was the nea\",\"Archcliffe Cells The entrance to Western heights originally had a grand gateway in place  known as Archcliffe Gate  It was a very imposing structure  The galleries comprised of several rooms  some of \",\"Channel Tunnel 1880 Attempt Many proposals had been made for a Channel Tunnel dating as far back as Napoleonic times and in 1875 serious planning began on both sides of the Channel  However  early att\",\"RAF Wartling R3 GCI ROTOR Radar Station  RAF Wartling became operational in 1941 as a radar station  In 1943 it was fitted with a larger type of radar which consisted of a rotating aerial array with b\",\"RAF Wartling R3 GCI ROTOR Radar Station Page two Location  Sussex Condition  Very Poor Date Of Visit  11 05 08 Plan  Yes Video  Yes   Video Link   Report  Yes More Info     Stairs leading to the lower\",\"North Front Casemates  During a new fear of invasion from Napoleon III two new dry moats where added to the existing citadel defences  The northern and the southern moat both had their own casemates b\",\"The Citadel  The Citadel was designed to act as a last defence should the remainder of the Western Heights defences fall to enemy attack   Its designs consists of three redans to its western side  and\",\"Fort Burgoyne Fort Burgoyne was designed  as one of the famous 'Palmerston Forts'  to protect the North Spur area of Dover Castle which was perceived as a weak spot in the defences and the most likely\",\"fORT BURGOYNE PAGE TWO Location  Dover Condition  Good Date Of Visit  17 03 07 Plan  No Video  Yes Report  No More Info      This splendid room with original features shows how the fort's officers liv\",\"Undergroundkent Links Links to other underground websites  Other UGK Sites  Undergroundkent Flickr Page Undergroundkent Youtube Page  Project Redsand   Subterranean History  White Cliffs Underground  \",\"Fort Knock John  The Maunsell Naval Sea Forts were designed to provide anti-aircraft defence in the Thames estuary after the Luftwaffe began their raids on London in 1940  The Thames estuary was not a\",\"Undergroundkent Plans Thanks to the Kent Fire and Rescue Service for allowing me to use their documents and plans  Athol Terrace Barwick Tunnel Chapel Caves East Cliff Dover Eastern Docks 1 3 Dover Ea\",\"drop redoubt  Dover Put simply  a redoubt is a detached outwork of great strength from which soldiers can fire in any direction  without flanking defences   The Drop Redoubt is certainly a formidable \",\"Sarre Brigade Headquarters  This complex of underground tunnels was built in the 1940's and served as Brigade headquarters for the South East Army Command  it was manned by Canadian troops   Other sim\",\"The Well House  the Citadel  Dover The Citadel was the stronghold of the Western Heights  it served as the storehouse for the entire fortification and would have been the place of final retreat should\",\"Tongue Sands Sea fort  The Maunsell Naval Sea Forts were designed to provide anti-aircraft defense in the Thames estuary after the Luftwaffe began their raids on London in 1940  The Thames estuary was\",\"South Front Casemates  Dover During a new fear of invasion from Napoleon III two new dry moats where added to the existing citadel defences  The northern and the southern moat both had their own casem\",\"Archcliffe Galleries The road  improvements  that took place in the 1960's meant the demolition of Archcliffe Gate and the surrounding ditch to be filled in  Fortunately the galleries that were inside\",\"Western outworks  Dover Situated above the South barrack casemates are part of the Western Outworks where four guns were placed  along with gunpowder rooms and a shifting lobby  During WWII many of th\",\"Snowdown Colliery The possibility of coal in Kent had been considered as early as the 1840's but no serious investigations were done until much later and coal was finally discovered around the Dover a\",\"Centre Bastion Battery The construction of the Centre Bastion Battery began in 1825 to fill in the gaps between the old indented lines and the new  indented lines  The Bastion was first equipped with \",\"North Weald Redoubt  Essex The In the late Victorian period  1889-1903  mobilisation centres were constructed around the London area in order to provide ready ammunition in order to defend the city  T\",\"Beacon Hill Fort  The need for fortification at Beacon Hill in Harwich can be dated back to Roman times  although it was not until the 16th century that any buildings were constructed  The first was a\",\"Long Hill Tunnels At Long Hill  Dover  is a set of tunnels called   Dumpy A       Dumpy B  being Langdon Hole    This was built as a radio station for the RAF in 1937  Both Langdon Hole and Long Hill \",\"Grain Dummy Battery This battery was constructed as a supporting structure for Grain Fort  and was originally known as Grain Battery  However  considerable difficulties were encountered during constru\",\"Dover Admiralty Pier Turret Admiralty Pier Fort  usually known as Dover Turret  was designed in 1870 after the Royal Commission report some ten years earlier idenitified Admiralty Pier as a very desir\",\"Noah's Ark Tunnel Noah's Ark Tunnel in Dover is a passageway through the hill in a downwards slope towards Union Road   It's precise date of construction and purpose is not clear  although early plans\",\"Test TThis battery was constructed as a supporting structure for Grain Fort  and was originally known as Grain Battery  However  considerable difficulties were encountered during construction due to s\",\"Ramsgate Air Raid Shelter   Ramsgate Railway Tunnel The tunnels underneath Ramsgate provided shelter from air raids during the Second World War  a purpose that they had also served the First World War\",\"Barton Point Fort Although it was originally recommended in 1860  work on Barton's Point Battery did not commence until 1889  The purpose of the battery was to provide a practice battery for the Royal\",\"Grain Fort The Isle of Grain has long been of strategic importance for safeguarding the entrance to the River Medway and the 1860 Royal Commission called for a casemated fort around the existing Grain\",\"Garrison Point Fort  Upper level Garrison Point Fort was built in the 1860's on the site of earlier fortifications dating back to Henry VIII  In 1667 amid fears of a Dutch attack  a new fort was begun\",\"Garrison Point Fort  lower level Garrison Point Fort was built in the 1860's on the site of earlier fortifications dating back to Henry VIII  In 1667 amid fears of a Dutch attack  a new fort was begun\",\"Sheerness - RNXS Emergency Port Control The RNXS  Royal Naval Auxiliary Service  was set up in 1962 as a result of the Cold War nuclear threat to Britain  particularly her ports  The role of the auxil\",\"Sheerness - RNXS Emergency Port Control Designed as a heavy battery during the First World War  Fletcher Battery was actually not completed until 1918  It provided effectual fire cover for the Nore an\",\"Shornemead Fort The Shornemead Fort was originally designed to be able to house 13 cannons  and work began in 1847  finishing 6 years later  Unfortunately  the ground that the fort stands on is extrem\",\"Dover Breakwater The detached breakwater was constructed in 1904 and  along with the expanded harbour  the guns on the breakwater served to defend the harbour itself  Alongside the gun emplacements we\",\"Canterbury Battle Headquarters Built by the 171 tunnelling company of the Royal Engineers in World War Two as part of the preparations in 1940  Other similar bases were also established at Reigate  Tu\",\"Southern Water Control Centre  Medway During the early 1980's with the Cold War still posing the possibility of nuclear attack  Southern Water built three emergency controls centres in their area of s\",\"hoo FORT The Royal Commission of 1859 identified the need to strongly defend the approaches to the Royal Dockyard at Chatham via the Medway   Hoo Fort was part of this defence strategy and was one of \",\"Darnet Fort Construction of Hoo and Darnet Forts was very difficult due to the instability of the ground  The original plans had to be revised  along with the original intended armament for the forts \",\"Hudson's Bastion  Dover Castle Built in response to the threat of invasion by Napoleon  Hudson's bastion was constructed on the eastern side of Dover Castle to improve its defences  It is linked to th\",\"Buckland School CMany Luftwaffe bombers that were unable to reach their target of London would simply release their bombs wherever they were  As Tonbridge was directly in the Luftwaffe's flight path  \",\"Kent Fortifications Select an icon on the map and it will show you the location of the fortification and you will also find a link to that relevant web page  \",\"Fort Borstal Fort Borstal forms part of the Chatham Outer Ring of defences  along with with forts Horsted  Luton and Darland and the Twydall Redoubts  It was constructed by prisoners from the nearby p\",\"Ellington Girls School Air Raid Shelter Ellington Girls School was built in 1914 at the time of the outbreak of the First World War and in 1917 the air raid shelter was constructed  The possibility of\",\"Clarendon House School Air Raid Shelter Many Luftwaffe bombers that were unable to reach their target of London would simply release their bombs wherever they were  As Ramsgate was directly in the Luf\",\"Minster roc post Minster was a master post  with satellite posts at Barham  Kingsdown and Herne  As such it had a VHF set to communicate with Group Control at Maidstone  and other master posts in the \",\"South Foreland Battery Deep Shelter  This is the second of the two deep shelters that were built at South Foreland  It was probably used by the people who manned the nearby plotting rooms as well as g\",\"South Foreland Magazine No4 These magazines have been sealed since the 1960's and as a result are in very good condition   They have sustained very little water damge  although some water has entered \",\"South Foreland Magazine No1 The only damage that seems to have been sustained by the underground magazines has been caused by water   Structurally  they remain in good condition   These magazines woul\",\"South Foreland Plotting room  No 2 This is the second of two plotting rooms in the South Foreland Area  The Fortress Plotting Room at South Foreland Battery provided fire control for the four guns whe\",\"South Foreland Plotting Room One This is the first of two plotting rooms in the South Foreland area  Even though there was a fire in there a few years ago the condition is still very good  All the bla\",\"Langdon Battery Langdon battery was situated on the cliffs overlooking Dover Harbour and was originally armed with 3 x 6  guns  later replaced with 6  guns  It served through both World Wars until the\",\"Brooklands Shelter  Vickers-Armstrong air raid shelter It was clear by the mid-1930s that war in Europe would break out sooner or later  By this time Brooklands Aviation Ltd had built a maintenance an\",\"Hougham Battery Hougham Battery was one of the coastal defence batteries along the Dover coast  consisting of three 8  naval guns  Along with the guns and their corresponding magazines  Hougham Batter\",\"East Demi Bastion  Dover Castle East Demi Bastion was constructed in Dover Castle's east ditch overlooking the harbour  It is directly linked to the castle via East Demi passage  A lower level  access\",\"Wanstone Battery Wanstone farm battery consisted of four magazines and two 15  ex naval guns called Jane and Clem  Jane was named after the young lady in the strip cartoon in the Daily Mirror  and Cle\",\"St  Margarets 5 5  Battery   Z Rocket   At St Margaret's Bay there is the underground deep shelter for St Margarets 5 5  Battery  This site was the first one to use the unrotated projectile known as t\",\"Dunkirk Chain Home Station During World War II  five radar stations were constructed to give early warning of approaching enemy aircraft around the Thames Estuary area  Dunkirk and Swingate were two o\",\"Dunkirk Chain Home Bofors Tower Near to the radar station at Dunkirk is a Bofors tower  so called because of the Bofors gun that was placed here to protect the station from enemy aircraft  Also in pla\",\"Dunkirk Chain Home Buried Reserve At Dunkirk chain home station were two buried reserves which would have been used in the event of the main transmitters being unusable following an attack from enemy \",\"Lydden Bunkers Lydden Bunkers are situated at Lydden Hill  There are three large buildings  which were used as an ammo dump  There used to be a tunnel in front of the complex which was used as a air r\",\"Bourne Park Railway Tunnel  Bourne Park asked for a tunnel beneath his land because he did not wish the view from his mansion to be spoiled  Being a rich man he got what he wanted  don't they always  \",\"Etchinghill Railway Tunnel The Elham Valley Railway was the product of the great inter-company rivalry between the South Eastern Railway and the London  Chatham and Dover Railway  The Company came up \",\"Road of Remembrance Bunker This bunker complex has two entrances  which are both now sealed  Most of the complex is in pretty good condition  It consists of various sized rooms  and it is clear to see\",\"Swingate Chain Home Station DuringBefore the outbreak of World War II  five radar stations were constructed to give early warning of approaching enemy aircraft around the Thames Estuary area  Dunkirk \",\"Swingate ROC Post he Royal Observer Corps Posts were used during the Cold War period in the event of a nuclear attack  Three men were posted here at a time and it was their duty to pinpoint the locati\",\"Shorts tunnel These tunnels were constructed as an extension to the existing factory in 1941  Building above ground was considered imprudent due to the vulnerability of the Medway estuary to air attac\",\"alland grange chalk mine Access to this mine was only possible after getting permission directly from the farmer  Alland Grange chalk mine is located in Thanet  It was possibly used to supply chalk lo\",\"Fort Paragon  Margate Near to the radar station at Dunkirk is a Bofors tower  so called because of the Bofors gun that was placed here to protect the station from enemy aircraft  Also in place here wa\",\"Manston Decontamination Area All of this building is above ground  although there is an underground bunker underneath  which has been capped off  I am still unclear as to the decontamination process t\",\"Margate Lido Lidos  which were enclosed sea bathing pools  became increasingly popular as the trend for sea bathing became an ever more sought after pastime of the Victorian era  In the 1920's the Lid\",\"Slade School  Many Luftwaffe bombers that were unable to reach their target of London would simply release their bombs wherever they were  As Tonbridge was directly in the Luftwaffe's flight path  thi\",\"The Outer Bastion  Dover The Citadel was designed to act as a last defence should the remainder of the Western Heights defences fall to enemy attack   Its designs consists of three redans to its weste\",\"Burham Tunnel Little information about this tunnel is available  for example when it was built or when it was shut but it is known the tunnel was dug to access a large chalk pit dug into the hillside \",\"Southwick UGHQ Built in 1870  Fort Southwick was one of the Portsdown Hill forts designed to protect the vitally important Naval harbour of Portsmouth  However  the importance of Fort Southwick increa\",\"Lower oil mills The Lower Oil Mill tunnels are a network of tunnels that were constructed in the early 19th century  if not before  During the Second World War  they were used as storage for oil  Whil\",\"Upper oil mills The Oil Mill Caves are easily visible from the road as they are situated directly behind a petrol station  They consist of a large U-shaped tunnel that has entrances at either end of t\",\"Limekiln Street Bond Store Situated to the west of the Oil Mills complex is Limekiln Street Bond Store  a place where goods were securely stored until duty was paid on them  A system similar to custom\",\"snape mine The area around Snape Wood had been known for centuries to be rich in iron ore and remained a centre for iron ore extraction and smelting until the advent of the Industrial Revolution  Trac\",\"Hangmans Wood Denehole The site was a medieval chalk mine  the ground here is a few feet of flood gravels covering about 50ft of the Thanet Sands which lie on the Upper Chalk with its distinctive blac\",\"Marden Mine Marden Mine is a mine dug into the Upper Greensand of North Surrey  This has had a long and varied history and undergone a variety of uses  In brief  it started in the mid 19thC as a fires\",\"Bedlams mine The site has several names  Bedlams Bank is the most commonly used one but in fact refers to the surface area around the entrance  The correct name is  The Chaldon Quarries   The site is \",\"Godstone mine GMS today is an amalgamation of 4-5 distinct quarries into one large complex  The southern series are the oldest  starting from the mid 18thC as three distinct firestone quarries  what w\",\"Crete Road Victorian Reservoir Construction work on the reservoir was completed on 2nd July 1866 and was used to supply a nearby soft drink factory in Folkestone with water  There are two tanks  each \",\"Truleigh Hill Rotor Station RAFThe ROTOR network succeeded the Second World War radar system  providing the UK with a much needed advanced detection system  The Soviet nuclear programme was much furth\",\"St Lawrence Railway Tunnel  Isle Of Wight The Newport  Godshill and St Lawrence Railway was opened in 1897  when St Lawrence station was first opened and was operated by the Isle of Wight Central unti\",\"Fort Bembridge The 1860's Royal Commission resulted in a massive fort building program and the Isle of Wight was no exception to this  On the east side of the island Fort Bembridge was constructed to \",\"Yaverland battery  Isle of wight Constructed in the early 1860's  Yaverland Battery is situated close to Sandown on the south of the Isle of Wight   It was originally armed with 8 x 7  RML guns and th\",\"High Down Rocket Test Site  Isle of wight The New Needles Battery was originally completed in 1895 and fully manned until 1918   It was brought back into action during the Second World War but in 1954\",\"Golden Hill Fort  Isle Of Wight Hexagonal in shape  construction of Golden Hill Fort took place between 1863 and 1868 at the top of Golden Hill on the Isle of Wight   Its main purpose was as a defensi\",\"uckpool Battery  Isle Of Wight Construction began on Puckpool Mortar Battery in 1863   It was designed to be armed with 27 guns  30 mortars and the necessary barrack accommodation for the gun crews   \",\"Culver Down Battery  Isle Of Wight A battery was proposed as early as 1887  in order to prevent ships from being able to bring their firepower to bear on the batteries and Yaverland and Redcliff  and \",\"Ventnor Chain Home Station And Radar Station Radar was developed during the 1930's as a way of warning against approaching enemy aircraft  A network of radar stations was built around the country to p\",\"Fort Brockhurst The Construction of Fort Brockhurst began in 1858  it was designed as one of five forts built to defend the western approaches to Portsmouth harbour  Entrance across the moat leads thr\",\"The Russian Submarine  U-475 Black Widow   Medway Also known as Foxtrot B-39 by NATO this submarine prowled the worlds oceans for 27 years  it was built in 1967 and was in active service until 1994  T\",\"Fan Bay Shaft  Dover The purpose of this cave is a complete mystery  There are quite a few ideas such as a fisherman's cave  and there is a shaft approximately 14ft deep that could have contained fres\",\"Tunbridge Wells Battle Headquarters Construction of these tunnels had been completed by 1941  although there is no direct reference for their purpose  Locals held with the rumour that they were for Lt\",\"Guildford Foxenden Quarry Air Raid Shelter With the frequency and intensity of German air raids increasing  public safety and protection became ever more crucial  Local authorities began a programme o\",\"Sheerness Docks Sheerness on the Isle of Sheppey has been a crucial maritime area for almost five hundred years  Situated in the Thames Estuary  it was realised in the seventeeth century that Sheernes\",\"Monkton Farleigh Sidings Farleigh down sidings was used during WW2 to transport ammunition from Monkton Farleigh ammunition depot  The tunnel is approximately a mile long  the first half of the tunnel\",\"Box Freestone Quarry Bath stone has long been renowned worldwide for it's excellent building properties  and for some considerable time the quarrying of this stone was a large and vital industry for t\",\"Westwood Quarry  Royal Enfield This structure began as a tunnel system in a quarry  During the Second World war it served two purposes  one section housed national treasures of great value  It was rum\",\"Ridge Quarry Originally a small Bathstone quarry  Ridge Quarry in Wiltshire was used for ammo storage during the First World War  and later expanded and used for the same purpose in the Second World W\",\"Monkton Farleigh Underground Ammunition Depot On the site of an old abandoned underground quarry lies the biggest WW2 ammunition depot in Europe  Started approximately in 1936  and used right until th\",\"Westerham Mines There are six entrances to these mines  although all of them are blocked off  This is because Westerham mines are now a bat reserve  and access to these mines is by permission only  Th\",\"Llanberis ammo store A disused slate quarry near Llanberis in North Wales proved to be an ideal site for use as an ammunition store  and at the outbreak of World War II the site was procured for the s\",\"COALHOUSE FORT The area of the Essex coast on which Coalhouse Fort stands today has been strategically important as far back as the Iron Age  with earthworks dating to that period suggesting the need \",\"Undergroundkent Site List Napoleonic   Palmerston South East Area Archcliffe Cells Archciffe Galleries North Casemates The Officers Mess The Outer Bastion South Casemates The Well House Western Outwor\",\"DOVER GRAMMAR SCHOOL AIR RAID SHELTER The British Government watched Germany's capacity to wage war increase rapidly throughout the 1930's and fully expected the Luftwaffe to begin bombing Britain's c\",\"fort horsted Britain's defences in the face of a possible land based invasion  As a result a huge amount of fortification work began across southern Britain  paying close attention to the protection o\",\"HOUGHAM BATTERY PLOTTING ROOM Built to correlate information for the guns  the plotting room at Hougham would have served the nearby battery  which consisted of 3 gun placements and other smaller AA g\",\"Langdon Seachlights At the base of the cliffs at Langdon Bay Dover  there were three searchlight batteries all built into the cliffs  The lights enabled any ship trying to enter to be illuminated whil\",\"LYDDEN SPOUT PLOTTING ROOM Situated at Lydden Spout Battery  this plotting room has been sealed for over thirty years   The interior is in excellent condition and there are still some contemporary ite\",\"St Martin's Battery Originally constructed during the Victorian era  St  Martin's Battery was extensively rebuilt and updated during the Second World War  At the rear of the gun positions the Victoria\",\"Ashley Road Air Raid Shelter  Epsom Epsom air raid shelter is still in very good condition  with the exception of a lot of graffiti in the first two side rooms   There are a lot of features in the she\",\"Coulsdon Air Raid Shelter It is possible that this air raid shelter was built not for the local residents but for the nearby Cane Hill mental hospital  Straight after the war it saw use as a workshop \",\"The Prince William Barracks  Fort Amherst The Prince William Barracks are accessible via the dry ditch  and would have played an important part of the defence of the dry ditch system  should Fort Amhe\",\"The Sunken Courtyard  Fort Amherst Further round the dry ditch is the Sunken Courtyard  It is much more spacious than it first appears  and with the amount of ventilation holes in each room  it was li\",\"The Caponier  Fort Amherst This caponier is at the end of one arm of the dry ditch  It was designed to control and prevent the movement of enemy troops through the dry ditch system  Soldiers manning F\",\"Trevanion Caves-East Cliff The East cliff caves consist of three separate tunnels all linking together  The Trevanion tunnels link up with Guildford and Athol Terrace tunnels and were used as shelters\",\"Undergroundkent site Search Site Search \");");
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