Directions & Hours

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Moaning Cavern Adventure Park
5350 Moaning Caverns Rd, Vallecito, CA 95251

WINTER SEASON: After Labor Day Weekend until Memorial Day Weekend (Note: Hours may change after November 1st)

Open Daily

Weekends: 10am to 5pm, last tickets sold at 4:45pm for zip line and rappel. Cave ToursFirst tour departs at 10am and last tour departs 5pm.

Weekdays: 10am to 4pm, last tickets sold at 3:45pm for zip line and rappel. Cave ToursFirst tour departs at 10am and last tour departs 4pm.

Holidays & Holiday Weekends: 
Veterans Day: 10am to 4pm
Thanksgiving Day: 10am to 4pm
Christmas Eve Day: 11am to 3pm
Christmas Day: 11am to 3pm

Moaning Cavern Adventure Trip is available daily.  Call for reservations at 866-762-2837.

SUMMER SEASON: Memorial Day Weekend through Labor Day Weekend

Open Daily, 9am to 6pm
Cave Tours: First tour departs and first rappel ticket sold at 9am and last tour departs at 6pm.  Last rappel ticket sold at 5:45pm.
Zip Line: First ticket sold at 9am and last tickets sold at 5:45pm.

Operational hours subject to change at anytime. Call to confirm 866-762-2837.


California Cavern
9565 Cave City Rd., Mountain Ranch, CA 95246

WINTER SEASON: After Labor Day Weekend until Memorial Day Weekend 

Open Daily Note: California Cavern usually floods during winter, so we may be closed after November. 

Weekends: 10am to 5pm, Cave Tours: First tour departs at 10am and last tour departs 5pm.

Weekdays: 10am to 4pm, Cave Tours: First tour departs at 10am and last tour departs 4pm.

Mammoth Cave Expedition – OPEN – expedition start times are 11:30am and 1pm. Call for tour availability and make reservations at 866-762-2837.  Tours do fill up fast!

Middle Earth Expedition – OPEN – expedition start times are 11:30am and 1pm.Call for tour availability and make reservations at 866-762-2837.  Tours do fill up fast!

Holidays & Holiday Weekends: Note: California Cavern floods during winter, so we may be closed after November. 
Veterans Day: 10am to 4pm
Thanksgiving Day: 10am to 4pm
Christmas Eve Day: 11am to 3pm
Christmas Day: 11am to 3pm

SUMMER SEASON: Memorial Day Weekend through Labor Day Weekend

Open Daily, 10am to 5pm
Cave Tours: First tour departs at 10am and last tour departs 5pm.

Operational hours subject to change at anytime. Call to confirm 866-762-2837.


Black Chasm Cavern

15701 Pioneer Volcano Rd., Pine Grove, CA 95689

WINTER SEASON: After Labor Day Weekend until Memorial Day Weekend (Note: Hours may change after November 1st)

Open Daily

Weekends: 10am to 5pm, Cave Tours: First tour departs at 10am and last tour departs 5pm.

Weekdays: 10am to 4pm, Cave Tours: First tour departs at 10am and last tour departs 4pm.

Holidays & Holiday Weekends: 
Veterans Day: 10am to 4pm
Thanksgiving Day: 10am to 4pm
Christmas Eve Day: 11am to 3pm
Christmas Day: 11am to 3pm

SUMMER SEASON: Memorial Day Weekend through Labor Day Weekend

Open Daily, 9am to 5pm
Cave Tours: First tour departs at 9am and last tour departs 5pm.

Operational hours subject to change at anytime. Call to confirm 866-762-2837.