After a four-year closure, Crystal Cave will be inviting visitors to "marvel at its underground splendor," Sequoia Parks Conservancy officials stated in a press release. Tickets for guided tours of ...

Visitors will be able to enjoy a half-mile loop through the narrow passages and steep sections of the stunning marble cavern ...

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 ...