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

Alabaster is a white, translucent mineral lighter and softer than marble, formed after an inland sea evaporated. Alabaster ...

The Marble Caves are natural rock formations with curved walls covered in swirling mineral patterns. They sit on the shores of General Carrera Lake, a glacial lake in southern Chile. The lake ...

SEQUOIA NATIONAL PARK (KFSN) -- After a four-year closure, Crystal Cave in Sequoia National Park is finally opening to visitors again. Tickets for guided tours of the underground marble cave go on ...

This popular cave hike requires visitors to make their way through small openings, crouch lower than 45 inches at times, and ...

Tickets for guided tours of the marble cave will go on sale at 10 a.m. on March 31. Crystal Cave is located within Sequoia National Park and offers a "captivating glimpse into a world of stunning ...