Two people admiring Crystal Cave within Sequoia National Park. BRIAN PETERSEN/COURTESY OF SEQUOIA PARKS CONSERVANCY Special to The Bee Crystal Cave in Sequoia and Kings Canyon National Parks will be ...

Spooky, wonderous, stalactite-y: Crystal Cave in Sequoia National Park returns this summer season for guided tours after a four-year closure due to consecutive natural disasters in the national park.

It hits you right when you need it, at the the bottom of a sweltering canyon deep in Sequoia National Park: a blast of cold air, like your midhike daydreams of sweet air conditioning came to life and ...

Hidden inside Vietnam’s Phong Nha-Ke Bang National Park is Son Doong, the largest cave on Earth. It’s so vast that a Boeing ...

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 ...

Some of the most breathtaking moments of the “Planet Earth” series take place in Hang son Doong Cave in Vietnam. But capturing and showcasing the natural beauty of the largest cave in the world ...