Tree Monkey & Whitelackington, did triple hole a few years back, no maggots & no meat left on any bones, also no discernable smell.
In one of the bottom chambers, every few inches, you can seen, the hand pick marks on the walls / ceiling, probably best on Mendip.
Only go with no more than three people, other than multiple (four) entrance shafts, as very steep loose floor, well worth a go.
Very exciting descovery of write up in Descent. :