One local calls Culebra an “island of nothing—no nightclubs, no casinos.” The beach is your best bet for entertainment. If Flamenco’s mile-and-a-half stretch of cinematic white sand and turquoise water grows old, try hiking 24 minutes to Carlos Rosario Beach, a premier snorkeling spot. An opening in the gate at the back edge of the Flamenco Beach parking lot takes you to the trail.
If the ten square miles of Culebra are too vast, catch a boat to Culebrita—little Culebra—a wildlife sanctuary off the northeast coast with a nineteenth-century lighthouse. Find a water taxi or chartered boat to take you there by stopping in the tourist office on Pedro Marquez Street, around the corner from the ferry dock.
Rent bikes from the aging hippies who own Dick and Cathie’s (787-742-0062; $17 per day) —they’ll pick you up at the ferry or airport—and ride six miles down Route 250 to Zoni Beach. It’s almost as nice as Flamenco Beach, but without the crowds and the vendors.