
It's very very dark black rock limestone, but there is also alot of sandstone cobble and rock around...so the lighting reflects that lovely blueish tint off the shiny black surfaces.Great find. Out of interest, in the video what is the bluish colour on lots of the rock surfaces? Is it a product of your lighting or is the limestone actually that colour?
The Great Unknown and prophesied/theorised 'Mendip Master Cave'I'm not very familiar with Mendip caving - are you heading towards a known cave or the Great Unknown?
It works on PC without any extra mode. I think the point was "if viewing on a mobile, it's best viewed in game mode"I dont have a mobile.






