Location: Department of Arequipa, province of Islay.
Area: 690 hectares.
Creation: February 1984.

Intangible area, conservation unit and protection of the fauna and flora, constitutes an important point of rest of numerous species of migratory birds. It is located in the coast area, and it includes the Mejía Lagoons, near the outlet of Tambo River. It is a formation of low flooding lands, separated by a narrow strip of beaches and sandbanks, of the sea.

It is located 150 km (93.2 miles) west of Arequipa and 20 km  (12.4 miles) south of the Mollendo Harbor.

In this habitat there are carried out investigations and big efforts to preserve and maintain it in their maximum natural state. There are many lagoons with different degrees of salinity, swamps, "totorales", saline and grassy lands that constitute a complex ecosystem. Here you may find 157 species of birds, 72 are residents, 62 regular visitors and 23 species sporadic visitors.