Traverse 330 steps on the way to such distinctive chambers as the “Devil’s Kitchen” and the “Crystal Vault.” Wild caving ...

Most people think of visiting big cities, national parks, and beaches when they plan a U.S. trip. There’s hardly anyone who’s ...

As such, they are believed to be the purest form of selenite crystal in the world. The Cave of the Crystals ... the tubing to keep the researchers cool. But even with those suits, the team ...

Tickets for guided tours of the marble cave will go on sale at 10 a.m. on March 31. The cave features stunning stalactites ...

U.S. News Insider Tip: Café Olé, just outside the Crystal & Fantasy Caves, has one of the best fish sandwiches on the island. A sun hat is essential because you'll sit in the garden while they ...

Crystal Cave, the ancient marble cavern at the end of a steep half-mile hike in Sequoia National Park, is slated to reopen to ...