Swildon's Hole through route discovered on the Mendip Hills. Following a number of months of digging and blasting, the link was made in 1996 at the top of the Cowsh Avens Series, a climb above Sump 4. The water in the cave resurges in Wookey Hole Caves. This was first demonstrated (by pouring dye into the water) by Graham Balcombe and Jack Sheppard of the Cave Diving Group, who first passed Sumps 1 and 2 in the 1930s. Swildon's Hole Swildon's Hole is an extensive cave in Priddy, Somerset. At in length, it is the longest cave on the Mendip Hills. It
Wookey Hole Caves in 1989. A collection of fairground art of Wookey Hole was sold in 1997 at Christie's. The present owner is the former circus proprietor Gerry Cottle, who has introduced a circus school. The cave was used for the filming of episodes of the BBC TV series "Doctor Who": the serial "Revenge of the Cybermen" (1975) starring Tom Baker. This has since been referenced in the comedy of "The League of Gentlemen". The cave was also used in the filming of the British series "Blake's 7" (1978) and "Robin of Sherwood" (1983). The caves were used again for "Doctor Who" in