The land area of the two islets (Cemitério Island, southwest and Farol Cay, northwest) is 0.36 square kilometres (89 acres).

The highest point is a sand dune in the south of larger Farol Cay, with a height of 6 metres (20 ft).

The population consists of crabs, spiders, scorpions, sand fleas, beetles, large roaches, and many species of birds.

The atoll is a wildlife sanctuary, and in 2001 was designated by UNESCO as a World Heritage Site because of its importance as a feeding ground for marine life.

On the other hand, the remoteness also limits researchers' access to the islands and few studies have been developed on this atoll.