Lying off the northern Freguesia de Santana peninsula, Ilha Grande’s Blue Lagoon (Lagoa Azul) is not a proper lagoon despite its name but rather an area of shallow Caribbean-colored waters. From Abraão, schooners bring you there to snorkel with striped and colorful fish. An old whitewashed church is all that remains onshore from the colonial era, and over a post-snorkel lunch in the small village that sits on Japariz Beach, you might spot dolphins swimming in the sea.