 
 
|   BOYDEN CAVERN | |
|   | Kings Canyon National Park. Eighteen miles north of Grants Grove Visitor Center, where Highway 180 crosses the Kings River | 
|   | currently closed | 
|   BLACK CHASM CAVERNS | |
|   | Near the towns of Volcano and Pine Grove in the Mother Lode.. See map on the website.. | 
|   | 1(888)488-1960 | 
|   CALIFORNIA CAVERNS | |
|   | Take Mountain Ranch Rd. east from San Andreas on S.R. 49, then right at Mountain Ranch. See map on website. | 
|  | 1(888)488-1960 | 
|  CRYSTAL CAVE | |
|   | Sequoia National Park. 55 miles northeast of Visalia along State Highway 198. Sign directs visitors left for nine mile descent along scenic drive to parking lot. | 
|   | (209) 565-3341 | 
|   LAKE SHASTA CAVERNS | |
|   | North of Redding along Interstate 5 about 13 miles. Take Shasta Caverns exit and follow road 2 miles to parking lot. Catamaran and bus ferry visitors to cave. | 
|   | 1-800-795-CAVE (916) 238-2341 | 
|   LAVA BEDS NATIONAL MONUMENT | |
|   | Off state Highway 139 about 20 miles south of Tulelake. County Road 111 leads to Monument. | 
|   | Nineteen lava tubes are open to visitors. Cave Loop road accesses many of these caves. Bring flashlights or borrow them at Visitor Center. | 
|   | 8:00 a.m. to 5:00 p.m. year round | 
|   | (901) 667-2601 | 
|  MERCER CAVERNS | |
|   | Out of Murphys, take State Highway 4 one mile north of Main Street to Sheep Ranch Road. | 
|   | (209) 728-2101 | 
|   MITCHELL CAVERNS NATURAL PRESERVE | |
|   | In the Providence Mountains State Recreation Area. Follow Essex Road off Interstate 40 north for sixteen miles. | 
|   | A tunnel now connects two natural caves allowing a round trip through these fossil, dry, well-decorated systems. | 
|   | The cave is only open for tours on weekends, during the summer. | 
|   | (760) 928-2586 | 
|   MOANING CAVERNS | |
|   | 5350 Moaning Cave Rd, Vallecito, CA 95251 | 
|   | (209) 736-2708 | 
|   PINNACLES NATIONAL MONUMENT | |
|   | From the south, take County Road G13 west from State Highway 101 to Bitterwater. Turn north on State Highway 25. From the north, follow Highway 25 south from Hollister. | 
|   | Two small caves have been formed where boulders roof narrow canyons. Natural light is sufficient to navigate along stairs and narrow trails. | 
|   | Daily 7:00 a.m. to 8:00 p.m. year round | 
|   | (408) 389-4578 | 
|   SUBWAY CAVE | |
|   | Near the intersection of State Highways 89 and 44 at Old Station, on Forest Service property. Follow Highway 89 one-half mile north of information center. | 
|   | This meandering lava tube is left in its natural state a truly wild caving experience. Bring a light and look out for many interesting features typical of volcanic caves. | 
|   | Open all year, as weather permits. | 
|   | (916) 336-5521 | 
|   SUNNY JIM'S CAVE (a sea cave) | |
|   | Beneath the La Jolla Cave & Shell Shop, 1325 Coast Blvd. in La Jolla, just north of San Diego | 
|   | Open daily, Call for hours. | 
|   | 858-459-0746 | 
Updated on August 17, 2018
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