10th December: with Tom Chapman, Jake, Nick, Tav and Alex.
The Hallowe’en Team beyond the show cave in Wookey Hole Chamber 20.
The decorations caught us by surprise somewhat and were the subject of some amusement.
Geologically Wookey 20 is interesting being formed mostly along the unconformity between Carboniferous limestone and Triassic dolomitic conglomerate. There are a number of fine rock formations including rillenkarst (pictured below).
We spent a while exploring the main chamber beyond the scaffold walkway looking at the sump pools where the divers exited, up to the unconformity and other formations.
You’ll have to excuse the additional lighting of the image above.
We headed off to explore the rest of the cave accessible from Wookey 20 and we were pleasantly surprised by its quality an how much there was to it. A climb through an inclined passage of fine proportions with some good speleothems and interesting rock formations i.e. more rills, flutes and scalloping. At the end there is some considerable potential to extend the known cave and some side passages that would require some further attention. Another trip to properly assess some of the potential is planned in the not to distant future. An excellent couple of hours caving!
