Description Sancho Bay, surrounded by cliffs, offers delicious emerald waters and is one of the most beautiful beaches of Fernando de Noronha, an archipelago of volcanic origin 500km off the coast of Brazil. Most of the archipelago is a natural marine park, a santuary for birds, sea turtles and dolphins. Its clear waters give scuba divers great opportunities that rival the Caribbean seas. Reached only by sea or by a steep ladder, Sancho is also one of Noronha's most secluded beaches.