Baía do Sancho, on Fernando de Noronha, regularly tops TripAdvisor’s "world's best beach" lists. Descending through a narrow crack in the volcanic cliff face, via a series of bolted-on iron ladders, you’ll immediately grasp why. This gold-dusted crescent of sand is cradled by 50-meter volcanic cliffs, thick with emerald vegetation. The water’s clarity is remarkable; from the overlook, you often spot spinner dolphins arcing out of the waves.
Fernando de Noronha is a volcanic archipelago, 350 kilometers off Brazil's northeast coast. Strict visitor limits—a maximum of 460 people on the main island at any given time—protect its status as one of Earth's most pristine marine environments. This UNESCO World Heritage site and marine sanctuary provides habitat for the planet's largest concentration of resident spinner dolphins; up to 1,000 can be seen gathering each morning in Baía dos Golfinhos. Diving here is exceptional, easily some of the best in the South Atlantic. Expect visibility often exceeding 40 meters, with frequent encounters with sea turtles, reef sharks, and manta rays. You might even spot a lemon shark cruising through the deeper channels.