Wooky Hole Caves and Museum
I didn't expect this to be anywhere near as extensive or interesting as it was. The cave visit was excellent, with about 9 chambers, each varying dramatically in size and 'feel', plus an interesting history.
Then there's a walk back to the old paper mill, involving some dynosaur models (why?). The mill itself was quite interesting, with opportunity to make paper, although by this point we were both a little walked-out and concerned that the day was rapidly disappearing and we hadn't made it to Glastonbury yet.