Playa Punta Cocos

This guide to Playa Punta Cocos on Holbox's western tip opens with the blue flare of bioluminescent plankton at your feet, and the defensive reason those flashes appear at all. It follows why this stretch of shoreline has stayed almost untouched, save for a single small drink stand, and how sea turtles use these same shallows as a nursery through the seasons. Best experienced on a dark, moonless night, walking slowly through the shallows.