Crystal Cave, nestled in California's Sequoia National Park, enchants visitors with its intricate marble rock formations, ...

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

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

If you're looking for a truly tight squeeze in Utah, this slot canyon has just the place to go and all it takes to get there ...

Utah is home to five national parks — and, depending on how much time you have, it’s possible to visit all five in one trip.