Speedwell Cavern

Peak District


Just over half a mile west of Castleton at the mouth of Winnats Pass, this claustrophobe's nightmare is reached by descending 106 steps for an eerie boat ride through flooded tunnels, emerging by a huge subterranean lake called the Bottomless Pit. New chambers are discovered here all the time by potholing expeditions.


Lonely Planet's must-see attractions

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