Caves of the Mendip Hills then rising up a fracture in the rock. Few caves on the Mendip Hills are more than deep or a few kilometres in length, (with some notable exceptions, such as Swildon's Hole which is over long), but a number are complex with several levels of passages which have been abandoned by the water, for example those around Cheddar. The catchment area of the Cheddar Yeo, which rises in Gough's Cave, measures . Dye marking shows that some of the water travels underground for up to , taking up to 14 days to reach Cheddar. When Banwell Bone Cave was discovered
Wookey Hole Caves the historic machinery. Visitors to the site are still able to watch a short video of the paper being made from cotton. Other attractions include the dinosaur valley, a small museum about the cave and cave diving, a theatre with circus shows, a house of mirrors and penny arcades. In 1956, Olive Hodgkinson, a cave guide whose husband's family owned the caves for over 500 years, was a contestant on "What's My Line?" The cave and mill were joined, after purchase, by Madame Tussauds in 1973 and operated together as a tourist attraction until there was a management team buyout