Emerald Cove Sea Cave

This guide to Emerald Cove Sea Cave in San Diego follows the paddle in past barking sea lions on the La Jolla cliffs, through a tunnel the ocean spent seventy-five million years carving next to Clam Cave. It lingers on the debated claims about the cove, the green light on its walls, and the half-submerged pillars guides thread you past with barely a foot of clearance. You'll also hear about the coastline's old smuggling trade, carried out along the same dark water. Book with a guide who checks the swell before they check the calendar.