The Ría de Arousa is a ria, a saline estuary, that forms a firth situated on Galicia, Spain.
The Arousa estuary is a true system of coastal forms (estuaries, deltas, tyrols, groups of erosion islands and witness islands) developed with diverse rhythm on both banks, set with two large tributary valleys, that of the Ulla and Umia, within the unity of its clear green water lobed ellipse, may be agitated by the tides and waves. Sálvora Island wholly beaten by the open sea, it divides the mouth of Arousa, continuing the direction started at Cape Falcoeiro and Segres de arc islets, slightly concave west of the insular front (Ons, Cíes) of the properly low estuaries. The brave islets Bionta and Peñan Novo stand behind Sálvora. In the center of the estuary, the island of Arousa offers two different aspects as a doubtful expression of marine action that determines its concave shape to the West and the slow influence of the beaches to the East, where sandy arrows point towards the coast of Vilanova and Cambados. The southern Quilme point of the tormented West profile of the island seems to continue on the Isoso, Pedregoso and Rúa islets. In small, the island of Arousa offers the synthesis of the forces and geographical facts of the coast of the estuaries.
Otero, Pedrayo, R,. ( 198o) Guía de Galicia. Vigo. Ed:Galaxia.
Illa de Arousa