Ilha Mae / Ponta Sul is the sheltered south point of Ilha Mae in Itaipu, Niteroi, with a shallow rock-and-sand profile that suits newer divers and still stays interesting for repeat visits. The boundary between the island edge and the sandy bottom is easy to read, so the route feels simple and low-stress. Rocky habitat and reserve waters bring regular ray sightings and other small reef life. Plan conservatively on calm days, because access and the return get less forgiving when wind and chop build.