Treak Cliff Cavern.
Location: Castleton. Hope Valley, Derbyshire, UK
About: Treak Cliff Hill is the only place in the world where Blue John Stone naturally occurs. Come and enter an Ancient Underground Wonderland in the heart of the Peak District National Park, Derbyshire, England.
Opening Times: Open all year except Christmas and New Year (weather permitting). 1 March - 30 October open 9.30am, last tour 4.20 or 4.45pm. 1 November - 28 February open 10am, last tour 3.20pm
Address: Treak Cliff Cavern, Castleton, Hope Valley, S33 8WP
Phone: 01433 620 571
Email: bluejohn@treakclf.u-net.com
Website: www.bluejohnstone.com