Wookey Hole Caves then passes through major cave systems such as Swildon's Hole, Eastwater Cavern and St Cuthbert's Swallet, around Priddy, but 95% is water that has percolated directly into the limestone. The southern slopes of the Mendip Hills largely follow the flanks of an anticline, a fold in the rock that is convex upwards and has its oldest beds at its core. On the Mendips the crest of the anticline is truncated by erosion, forming a plateau. The rock strata here dip 10–15 degrees to the southwest. The outer slopes are mainly of Carboniferous Limestone, with Devonian age Old Red Sandstone exposed
Cheddar Gorge open-top bus tour operates during the summer. Cheddar cheese is made in the lower part of the gorge. UK 1960s Garage Rock band The Troggs used Cheddar Caves as the backdrop for the band photo on their debut album "From Nowhere – The Troggs", which included the US "Billboard" no.1 hit single (no.2 UK), "Wild Thing". Cheddar Gorge was the setting for Peter Nichols' 1968 comedy "The Gorge", in the BBC's Wednesday Play series. Cheddar Gorge is a panel game played on the BBC Radio 4 series "I'm Sorry I Haven't a Clue". The gorge was used as a location