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

Crystal Cave has been one of the most popular visitor destinations in the park since it opened for public tours in 1940.

Inside, visitors find an otherworldly sanctuary decorated with five tones of crystal from the Diamond Cave in Arkansas, faux rock formations, artificial stalagmites and stalactites, and a series ...

Discovered in 1999 inside an abandoned mine in Southern Spain, Pulpí Geode is the largest crystal 'cave' of its kind in the world. But what exactly is a geode and how do crystals form inside them?

The infernal environment and the presence of the crystals has required the development of specific equipment and technology, ranging from refrigerated suits to “crystal-friendly” boots, in order to ...

The stalactites and stalagmites of Sequoia National Park’s Crystal Cave, a sprawling subterranean wonder that’s been closed for four years, will be accessible again this summer. But to get in ...

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 ...

Once submerged under the sea millions of years ago, the Cayman Crystal Caves were shaped by water erosion, creating rooms filled with stalagmite and stalactite formations. Over time, dripping ...

Like the majestic General Sherman tree, lush Crescent Meadow and the awe-inspiring Congress Trail, Crystal Cave has long been among the greatest visitor attractions at Sequoia National Park.