1
T.v.'s Batcave
Hollywood,
CA
Hidden in the Hollywood hills (and nowhere near the house used as "Stately Wayne Manor") this cave. Just a short hike from the entrance to a park. waymarking.com
2
Southern California Grotto
La Canada Flintridge,
CA
1st Tue. 7:30 PM Beckman Institute Auditorium, Caltech, Pasadena, CA nssio.org
4
Palos Verdes Sea Cave
Rancho Palos Verdes,
CA
The sight of the cave, even from the bluffs 200’ up, is available only to walkers/hikers and CANNOT be seen while driving. The ocean water washes through the cave quite dramatically, especially at higher tides. At ... waymarking.com