Treak Cliff Cavern

The Castleton Caverns comprise The Blue John Cavern, Treak Cliff Cavern, Speedwell Cavern (all clustered around the Winnats pass) and the great Peak Cavern, just outside Castleton village.

Treak Cliff cavern is higher up the old Mam Tor road and contains a range of nice stalactite and stalagmite formations. It is open all year. The cave was originally a mine, dug mainly to mine Blue John, which is still mined here. The initial sections of the cave pass through the old mine workings and veins of Blue John (which is a fluorspar discoloured by blue and yellow impurities, much used for jewellery) can clearly be seen in the walls. In 1926 the miners broke through into natural caverns beyond, and these have some fine natural formations, which have been christened by names such as the Frozen Waterfall and Alladin's Cave.