Blue John Cavern

Blue John Cavern information

adult/child £11/6
Opening hours
9.30am-5.30pm Apr-Oct, to dusk Nov-Mar
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Up the southeastern side of Mam Tor, 2 miles west of Castleton, Blue John is a maze of natural caverns with rich seams of Blue John Stone that are still mined every winter. You can get here on foot up the closed section of the Mam Tor road.