Mamtor, Castleton, Hope Valley, Derbyshire, S33 8WA - Please follow the brown signs to the cavern.
BLUE JOHN CAFE...enjoy Hot and Cold Meals, Refreshments and Home-baked Cakes...The Blue John Cavern is a world famous, beautiful and ornate fluorspar.
The mineral has been mined for centuries and continues to be so in the winter months. Traditi