Around Mendip I know of Sandford Levvy & Ravens Well (there is no need to enter Nancy Camel's Hole & you just need photo evidence that you have been to Redcliffe Caves or Wookey Hole) - they are named in the descriptions, so I'm not giving anything away - any others around the country that others have come across (I have seen the Winnats Pass cache was removed several years ago)?

Mike

There was one in Sally's rift (Mendip) and another of the rift caves nearby (no 5 possibly).  There was at least 4/5 years ago anyway. Not sure if they are still there.

At a similar time most of the significant bath stone mines had one (box, browns folly, Swan mine etc) had one in as well. Again I'm not sure of there current status (I guess the one in box has definitely gone).

There was one in Helsfell Cave, Kendal a few years ago

Ogof Clogwyn in the Clydach gorge has one.