Sallet Hole - Derbyshire
A mixed-mine that had been worked for lead, barytes, and fluorspar, closing in 1998.
Oxlow Cavern - Castleton
A part natural, part mined cavern in Derbyshire. known for its impressive size and connecting systems.
Water Icicle Close Cavern - Monyash
Water Icicle Close Cavern in Derbyshire is a mix of natural cave passages and old mine workings, known for its formations and a deep entrance shaft.
Hanging Flat Mine - Stoney Middleton
This small Derbyshire mine, worked for lead and later fluorspar until 1987, was briefly used for a 1992 "Peak Practice" episode (leaving polystyrene boulders).