We follow a long set of wooden stairs deep underground to a sea cave with a mysterious and colorful past, and take in a spectacular, hidden view of the Pacific Ocean in La Jolla. 

Learn more about The Cave Store: https://www.cavestore.com/

All this week, the Atlas Obscura Podcast is hitting the sand, and taking a tour of the world’s most unusual beaches.  

Plus: Pre-order your copy of our new book, The Atlas Obscura Explorer’s Guide to Inventing the World, today!