The marine setting is rocky in the eastern side, with steep slopes and ravines, but mainly sandy in the western area. The shallowest part of the coast is colonized by two rare species, the red alga Lithophyllum lichenoides and the endangered giant limpet Patella ferruginea. The integrity of the ecosystem is due to the history of its settlement, or rather the lack of it, that is a characteristic of the island.
