Hidden Earth 2023
GB Cave: descent of Mendip's tenth deepest cave
30 minute Film|Nick Thorne

Abstract
The film follows a single caver's journey on a sporting descent of Mendip's tenth longest and tenth deepest cave. The film was completed in August 2023. To our knowledge, it includes the first filming of Disappointment Chamber and Great Chamber. The 21 minute film is followed by a two-minute extract of a recent (August 2023) interview with four of the University of Bristol Speleological Society cavers who made the breakthrough into Bat Passage, and these two impressive chambers, in 1966.
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