Ria Formosa Natural Park consists of 2 peninsulas, 5 islands and 6 stripes. It is surrounded on one side by the sea, and on the other side by the "ria". Located on the Algarve's west coast between the sandy peninsulas of the Ancão and Manta Rota, Ria Formosa is the most important wetland in the south of Portugal. Its Natural Park occupies 18,000 ha. A cordon of barrier islands separates it from the sea. Small streams of water with seasonal regime feed it with fresh water. Diverse habitats - dunes, marshes, vases, pinewood areas and agricultural areas - complete the whole picture. This Park is an important area in terms of avifauna and varied marine fauna, its lagoon area serves as a nursery for some marine species. This protected area is the scene of multiple activities - bivalve farming, fish farming, saliculture.