Rocas Atoll ( Atol das Rocas) is an
atoll in the
Atlantic Ocean at location . It is part of
Rio Grande do Norte state,
Brazil.The oval atoll is 3.7 km (2.3 miles) long and 2.5 km (1.6 miles) wide. The
lagoon is up to 6 m (20 ft) deep and has an area of 7.1 km² (2.7 sq mi). The land area of the two islets (Cemitério Island, southwest and Farol Cay, northwest) is 0.36 km² (89 acres). Farol Cay accounts for almost two thirds of the aggregate area. The highest point is a sand
dune in the south of larger Farol Cay, with a height of 6 m (20 ft). Both islets are overgrown with grasses, bushes and a few
palm trees. There are crabs, spiders, scorpions, sand fleas, beetles, large roaches, and many species of birds.
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