After a four-year closure, Crystal Cave is inviting visitors to "marvel at its underground splendor," Sequoia Parks ...

After four years of closure, Crystal Cave is reopening this month in Sequoia National Park. Learn why it was closed, how to ...

You had to hold your breath and dive a little to get through.” These were the words of Russian speleologist Katiya Pavlova, describing the instant she and guide Adrián Beltrán Dimas pushed through a ...

In a hard-to-reach cave of northeastern India, a “slender” river creature with “fleshy” lips tucked itself under a rock. A ...

Whether you love the challenge of a family spelunking adventure or simply want a cool attraction in the heat of summer, caves and caverns are a great way to keep your kids entertained and active ...

The entrance to the cave looks sterilized — a stainless steel door that wouldn’t seem out of place in a hospital looks wholly foreign out here in Mammoth Cave National Park. Yet our cave guide ...

Researchers believe that those who built the bridge wanted a dry, continuous path to connect the cave’s entrance with a chamber beyond a lake within the cave. The cave’s bridge was first ...