Clearwell Caves

Location: Royal Forest of Dean, Gloucestershire

Open: February until October

........

Hellfire Caves

Location: West Wycombe, Buckinghamshire

Open: All Year

........

Ingleborough Cave

Location: Clapham, Yorkshire

Open: February to End of October

........

Mother Shiptons Cave and the Petrifying Well

Location: Knaresborough, Yorkshire

Open: February to October

........