Caves & Caving

USA

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National Park

Mammoth Cave National Park

It preserves the world's longest known cave system, with over 360 miles of caves.

Carlsbad Caverns National Park

More than 100 caves, 250 million years old.

Cave

Luray Caverns

A magic world is revealed when visiting the largest caves in Eastern America.

Crystal Ice Cave

This ice cave in California has some interesting and strange ice formations.

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