Brackish, coastby shallow (30-40cm) lagoon, which is surrounded by reeds at the side of land, while at the seaside is surrounded by an oblong sandy isle, in the center of which there is an orifice of communication with the sea. Kotihi covers an expanse of nearly 800 hectares and it is the largest lagoon of Peloponnese. It is characterized by big variety of flora while it presents a big ecological interest, because it is the southwest lagoon in the western corridor of migration, of many birds. Nearby lies the area of Strofylia’s forest. An admirable zone of land which is nearly 15km long and 0.5-3.5km wide. Because of its international significance for the life and the survival of many aquatic birds, the area has been included in the “Ramshar convention” (a convention for the wetlands of international significance as shelters for aquatic birds) and is included in European “Areas of Particular Protection” Unions.