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Come experience a world like no other. Let our knowledgeable and friendly guides lead you through subterranean, crystalline passages in the Paha Sapa limestone. Marvel at the world's most extensive display of dog-tooth spar crystal, some as large as 16″ in length. Peer into the still, clear water of Diamond Lake as it reflects the massive crystal ceiling like a giant mirror. Visit the famous French Chandelier room, Crystal Palace, and Rainbow Arch and you will feel as though you are walking through a giant geode. The uniqueness of this experience is sure to create memories you will carry with you for a lifetime. Our visitor's center and cave entrance are located just off Highway 16 about 10 minutes south of Rapid City on the way to Mount Rushmore in the Black Hills of South Dakota. Visitors will be completely surrounded by the world's largest Dogtooth Spur Crystals-some as monstrous as T-Rex teeth. Experience the feeling of walking through "a giant geode". Owned and operated by Duhamel family for over 70 years. The tour is considered strenuous and takes about 45 minutes! Tour consists of 185 (370 steps round trip) - narrow steps down-same stairway coming out GUEST MUST SUPPLY CARIERS/BACKPACKS FOR CHILDREN 3 AND UNDER. Cave should not be attempted by people in poor physical condition, afraid of heights or claustrophobic. Open daily: 5/16/15-8/31/15: 9 AM – 5 PM *Final tour leaves at 4PM Tour lasts about 45 minutes.. Booking Instructions: Please select the appropriate number of individuals for each activity option. One time admission for use anytime during your stay.


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