The Islet of Areoso is a natural protected area located north of the Island Arousa to which it belongs. The islet is almost 9 hectares, low and made up mostly of fine sand, which is why its characteristic appearance is that of a dune coming out of the sea, especially in its northern part where there is a long white strip of sand. In the southern part, between the sand, an area of growing herbaceous vegetation emerges. It is surrounded by reefs located at the surface of the water. At its highest point, you can see the remains of megalithic dolmens. If you wish, you can take a sea route to see it closely.