Cheddar Complex the Pleistocene period. Cheddar Caves contain both active and fossil systems. The active cave system is one of the most heavily studied karst systems in Britain with reference to the conduit and diffuse flow characteristics of its hydrology. Charterhouse Caves include four major swallet caves that provide an indisputable record of Pleistocene landform development in the Mendips and surrounding area. Sun Hole Cave provides a varied fauna radiocarbon-dated to the end of the Late Devensian Cold Stage. Several types of limestone including Clifton Down Limestone, Cheddar Limestone and Cheddar Oolite are visible in the Gorge and surrounding areas with pale
Wookey Hole Caves dark parts of the cave where the witch was hiding. The blessed water immediately petrifies the witch, and she remains in the cave to this day. A 1000-year-old skeleton of a woman was discovered in the caves by Balch in 1912, and has also traditionally been linked to the legendary witch. The remains have been part of the collection of the Wells and Mendip Museum, which was founded by Balch, since they were excavated, though in 2004 the owner of the caves said that he wanted them to be returned to Wookey Hole. It was partly down to the legend