Crystal Cave, the ancient marble cavern at the end of a steep half-mile hike in Sequoia National Park, is slated to reopen to visitors this summer after four years of closure. The cave features a half ...

When we walked around to the right, we found the cave opening in a cluster of rocks buried in the hillside. We climbed over rocks and up the terrain into a large opening in the shallow cave ...

The Crystal Cave is a new gem and mineral shop here in Tucson that is part of a larger company based in India. The twist is that this gem shop is sharing its indoor space with the D2 Dispensary.