Mendip Hills to the development of cave diving in Britain. The first cave dive was attempted at Swildon's Hole in 1934, and the first successful dive was achieved the following year at Wookey Hole Caves, which has the deepest sump in Britain at 76 m (250 ft). The cave complexes at St. Dunstan's Well Catchment, Lamb Leer, and Priddy Caves have been identified as Sites of Special Scientific Interest. The deepest cave in the Mendip Hills is Charterhouse Cave with a vertical range of . Many caves in the Mendip area were excavated for archaeological and natural history studies by pioneer explorer
Udayagiri and Khandagiri Caves Udayagiri and Khandagiri Caves Udayagiri and Khandagiri Caves, formerly called Kataka Caves or Cuttack caves, are partly natural and partly artificial caves of archaeological, historical and religious importance near the city of Bhubaneswar in Odisha, India. The caves are situated on two adjacent hills, Udayagiri and Khandagiri, mentioned as "Kumari Parvata" in the Hathigumpha inscription. They have a number of finely and ornately carved caves built during 2nd century BCE. It is believed that most of these caves were carved out as residential blocks for Jaina monks during the reign of King Kharavela. Udayagiri means "Sunrise Hill" and has 18