The Peak Speedwell System is located in the village of Castleton, made up of Peak Cavern, Speedwell Mine, James Hall Over Engine Mine and Titan Shaft. The system contains about 18km of cave passage, one of the deepest underground cave dives in the UK, down to a depth of 74 metres; the highest underground pitch in the UK which is 145 metres high, it has six known entrances but only four are usable.
The Bung Ladder in Speedwell MIne was found to be damaged so due to the the Bung Ladder has been removed but it will return once fixed. Four anchors have been installed that cavers can use. Cavers heading down the Bung can rig an abseil rope but trips 'up-hill' will not be able to climb the Bung. A fixed line may appear here but Derbyshire Caving Association (DCA) reminds cavers that ropes fixed to any DCA anchor are NOT the responsibility of the DCA and their use is at your own risk.