Explore the underground world of Sequoia National Park. Beautiful formations, impressively large rooms and ornate marble polished by a subterranean stream make a tour of Crystal Cave an unforgettable experience. After passing through the spider web gate, your guide will give you a brief history of the cave and point out unique features and formations. During the 50 minute tour, you will be led from room to room on paved, lighted pathways, pausing to listen to the water and echoes in the cave in total darkness.