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 resurgences. In particular, the passages in the 20th chamber are interpreted as a former Vauclusian spring, the waters of which once surfaced in the Ebbor Gorge. It is uncertain whether that was the original rising or whether it formed when the main rising at Wookey was blocked. The current resurgence is located close to the base of the Dolomitic Conglomerate at the head of a short gorge formed by headward erosion with subsequent cavern collapse. The morphology of the passages is determined by the rock strata in which they are formed. The streamway in the outer part of the cave