Add Yahoo as a preferred source to see more of our stories on Google. After a four-year closure, Crystal Cave is inviting visitors to "marvel at its underground splendor," Sequoia Parks Conservancy ...

Lost River Cave is a 72-acre park best known for its underground boat cave tour. The cave was once home to a famous nightclub. After the club closed, the cave deteriorated into an illegal dump site.

New Mexico's Carlsbad Caverns National Park is a limestone show cave with the fifth-largest chamber in North America. I ...

The ongoing federal government shutdown shuttered Mammoth Cave National Park's guided cave tours in October, but there is still a way to make a trip out of the popular tourist destination in ...

Oregon’s fir-covered mountains hid a secret. Under the rolling, tree-covered landscape, Oregon Caves National Monument offers seasonal tours. Just south of Grants Pass in the Rogue River Siskiyou ...

Crystal Cave, located in Sequoia National Park, reopens to the public on May 23 after a four-year closure due to fire and weather damage. Visitors can purchase tickets for guided tours, with prices ...