Explore Culebra, which isn't very difficult to do. Because the U.S. government has one of its most diverse National Wildlife Refuges on Culebra, land developers haven't made much of a toehold there, either. There are three roads, each of them leading to a beach, and 2,000 people on the 11-square-mile island. Most people live in Dewey, the town all the locals call "Culebra," and everyone is friendly, laid-back and unaffected. Stop in for an introductory beer at the Dinghy Dock.
Hike across the is land to Playa Flamenco, one of the most spectacular beaches anywhere in the Caribbean, and see how many of the 85 kinds of birds that nest on Culebra you can identify.