|Depth||over 120 metres (390 ft)|
|Length||over 3 kilometres (1.9 mi)|
|Access||No prior permission required but a £3 per caver fee is charged, payable at booth in the parking area|
|Cave survey||Giant's Hole Survey|
There is a complex system connecting the cave to Oxlow Cavern and Maskhill Mine to the south. The Entrance Series is easily accessible making it a favourite with novices and groups. The stream that flows into the entrance can be followed through the cave, bypassing three sumps, to the East Canal, Giant's Hole's terminal sump.
There are several major tributary passages and a high-level fossil series that provides an alternative route through the cave and makes up part of the classic "round trip". East Canal has been dived to a depth of 24 metres (79 ft) in drought (but water levels are normally much higher). The connection to Oxlow Cavern is a serious undertaking and many cavers have underestimated the difficulty of the passage.
Since 2002 the Derbyshire Cave Rescue Organisation has attended 11 callouts to Giant's Hole, 1 of which resulted in a fatality.
- Leibundgut, Christian; Gunn, John; Dassargues, Alain, eds. (1998). "The Castleton Karst". Karst Hydrology (IAHS Proceedings & Reports). International Association of Hydrological Sciences. ISBN 1-901502-40-6. Retrieved 22 April 2015.
- "Giant's Hole, Castleton, Part 1" (PDF). Micro Guide. Peak District Caving. 10 January 2014. Retrieved 22 April 2015.
- "Giant's Hole Part 2" (PDF). Micro Guide. Peak District Caving. 15 December 2006. Retrieved 22 April 2015.
- Lydon, Paul. "DCRO Call-outs Page". derbyshirecro.org.uk. Retrieved 2015-04-22.