PLEASE NOTE THAT YOU ATTEMPT THIS CACHE ENTIRELY AT YOUR OWN RISK YOU SHOULD BE CAPABLE OF CLIMBING DOWN [AND BACK UP] AND DO THIS WELL WITHIN YOUR CAPABILITIES.
No Kidding, this is a subterranean experience that takes you back to the second world war. This is real 'Dads Army' stuff It took me about 15 mins to locate the cache entrance on the ground, from the website details provided.
The bones within are from animals who were unable to climb out - at least I presume they are animal bones!
You should cache in pairs and carry a mobile phone / leave a note. Whilst the climb is easy it may well be slippery when wet. You are strongly advised to carry a torch and a short length of rope may be handy. If you are caching in a party, each member will have to either retrieve or replace the cache. The cache is a log book and pen in a plastic box
The following link will give you the approx location and further information. Coordinates are for the Parking / footpath.
Link to website
Further information on this fascinating subject can be found here Link :
If you like these caches then you might like these too: 'It's a Cold War by Mario McTavish, WW2 Firle Patrol's Underground Hideout (Firle Beacon, Nr Lewes); WW2 Telham Out-Station (Near Battle) (Telham, Nr Battle); and WW2 Iden Patrol's Underground Hideout (Iden, Nr Rye). These are caches placed by 'Lost in the woods'.