Photos

Jewel Cave (click here to visit their website)

This cave is currently 147.91 miles long and is the second longest cave in the world! They think it might be connected to Wind Cave.

Volunteer cave explorers and spelunkers discover brand new places that no one has ever seen before. It must feel like stepping on the moon for the first time! Visit their website for volunteer opportunities.

From November 19-22, 2009 cavers spent 83 hours underground and discovered 5,281.30 feet of cave passages.

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