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Inside the Largest Cave System Ever Discovered in the United States

Stretching for hundreds of miles beneath the surface, this is the largest cave system in the United States — a hidden world ...

Explore the underground in these 7 U.S. caves

Looking for an adventure that’s cool (literally) and completely out of the ordinary? The United States is home to some of the ...
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The World's Largest Cave Has Its Own Climate System With Jungles, Rivers, and Clouds—and This Is the Only Way You Can See It

Highlights of the five-night trip include seeing the cave’s own rainforest and a calcite wall called the Great Wall of Vietnam. Vietnam is home to the world's largest cave. It's so vast that it has ...

Cave tours suspended at Mammoth Cave National Park. What we know

Though cave tours at the Mammoth Cave National Park have been suspended, visitors can still access campgrounds and trails.

More Travelers Are Testing Their Limits With These “Wild” Adventures in Total Darkness

Jewel Cave, South Dakota: America’s third-longest cave system offers wild tours requiring participants to scramble over ...
Only In Your State on MSN

Uncover the Mysterious Underground World Hiding in a Wisconsin County Park

If you're looking to do some cave diving, look no further than the Cherney Maribel Cave County Park.
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Ancient new shark species — dating back 340 million years — unearthed in world’s largest cave system

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...
UNILAD

Tourist was warned they could trigger 'world-changing' chaos after dropping Cheetos in largest US cave

Carlsbad Caverns National Park officials cautioned a traveler who'd left their chips packet in the Big Room last year, claiming it caused the perfect storm.