The timed entry program at Mount Rainier is being delayed at the Paradise Corridor entrance because of construction and closures this summer ...

While driving a quiet backroad, we spotted a cave entrance tucked away just off the side – and couldn’t resist checking it out. What we didn’t expect was a water-filled passage that led deep ...

Cueva de Sangre, or the 'Blood Cave', has proved fascinating for researchers for decades.

Clay Jordan, Sequoia and Kings Canyon National Parks superintendent, said the reopening of Crystal Cave is not only a ...

A team of researchers has uncovered a new species of crustacean deep within a limestone cave in Bermuda—a find that could ...

Lost River Cave, a 72-acre park known for its underground boat cave tour, was not always lively. The park boasts a ...

A natural wonder in Sequoia National Park is once again open to visitors.Crystal Cave was closed for four years—a result of ...

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

Tours will be offered through Sept. 30. All cave tour tickets will be reservable until the day of, and any unsold tickets ...

This prehistoric "entrance to the otherworld" or "Gates to Hell" is tucked away in a hidden corner of a Roscommon field. This ...

There are hundreds of caves scattered around the Greek island of Crete and all of them are worth a visit, either for their ...