A privileged marine fauna, under crystalline clear waters make Búzios a true "live aquarium". Under the water, the temperature stays around 70°F and is an invitation to beginners as well as veterans.
Close to shore, the good diving spots are the cliffs next to the beaches of João Fernandes and João Fernandinho, Lagoinha, Forno, Azeda and Azedinha - places for snorkeling and shallow dives.
Another must is to visit the Ilha da Âncora Island, only half an hour away from Búzios by boat, where the average visibility is 40 feet and can reach 80 feet during summer.