Inner Space Cavern

Inner Space cavern was discovered by a Texas Highway Department core drilling team in the Spring of 1963. Six inch core samples were taken to determine if the ground was stable enough to support a large highway overpass. As they were drilling one of the test holes, the bit suddenly dropped 26ft. and the highway crew knew there was something down there besides rock.

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The Crystal Caves of Bermuda

The Crystal Caves are the most famous of many caves in Bermuda and are named after the crystal clear water that fills the caves. The clarity is so perfect that it is possible to see the cave floor, which at one point lies 55 feet below the water's surface.

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Limestone Caves

Learn About Caves!

Most caves are solutional caves, often called limestone caves for the common type of soluble rock in which they form. The caves form as groundwater dissolves quantities of soluble rock by seeping along joints and faults.

Cavern Kids

Educate your Students!

Many caves of the NCA offer educational programs to students, scout troops and more! Contact our Director for a list of caverns that offer these programs.

 

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