California Cavern is e. on Mountain Ranch Rd., then about 2.8 mi. s.e. on Michel and Cave City rds., following signs. Chambers and passageways contain glittering formations ranging from fragile soda straws on the ceiling to colossal stalagmites rising from the floor.
A 60- to 80-minute guided walking tour, which includes a nature trail hike to and from the cavern, provides information about the history and geology of the cavern. Depending on water levels in the cavern, the trip includes a visit to the Jungle Room, named for the crystalline vines that cover its ceiling. For the more adventurous, two more physically demanding spelunking trips are available by reservation. Gemstone mining and gold panning also are offered.