This archipelago of 21 islands 215 miles off the coast of Brazil gives travelers a rare glimpse into (nearly) unspoiled nature. The islands went straight from military base to environmental sanctuary in 1988, meaning transportation is still pretty much limited to Dukes of Hazzard–style red buggies. The 10-square-mile main island, also called Fernando de Noronha, is home to the world’s largest breeding colony of tropical seabirds, and some 230 fish species have been identified in the transparent waters surrounding the islands—much of which boasts diving visibility of up to 160 feet. Five of the world’s seven sea turtle species (including two endangered ones) swim here, and spinner dolphins are so plentiful that researchers might sound bored when they tell you they’ve counted 48 that morning. Luxury outfitter Blue Parallel can craft itineraries to the remote islands that will leave you wanting for nothing, and the bungalows of Pousada Maravilha on the main island remain the best place to stay.