It is situated in the department of Arequipa, province of Islay and has an area of 690 6 hectares. It is a refuge and resting area for migratory birds over more than 1 242,74 mi. along the coast of the Pacific Ocean. This area provides the habitat and food mainly to birds coming from the North Hemisphere, such as the sanderling (Calidris alba). On its shores we can find toads (Bufo limensis); in the hills of the surrounding beaches, small lizards, such as Microlophus tigris; and from the lower areas, the Sechuran fox (Pseudalopex sechurae). Also, some species of fish, such as the striped mullet (Mugil Cephalus) and the pejerrey (Basilichthys sp.) have been recorded.On the beach area, there are approximately 180 bird species, both resident and migratory.