Crystal CavesJanuary 20, 2016Formations look close but are actually 50 feet below the surface, a testimony to the incredible clarity of the lake.Latest in HomeBizBash Sports10 Fun Ways Brands Have Courted Fans of All Ages at Sporting EventsLos Angeles / Southern California9 New Venues in San Diego for Spring 2024 Meetings and EventsOpinion & Experts8 Event Profs Share Failures and Tough Lessons LearnedExperiential Marketing, Activations & SponsorshipsGet a Sneak ‘Peak’ at This Cool Pop-Up From Kiehl’sRelated StoriesVenue DirectoryCrystal CavesHomeTransportationHomeOutside the BoxHomeDuggal Greenhouse Events II