The Ría de Arousa is a large estuary located in the northwest of Spain, specifically in the region of Galicia. It is known for its rich marine biodiversity and is an important area for fishing and aquaculture, particularly for mussels and oysters. The estuary is surrounded by several towns, including Vilagarcía de Arousa and Cambados, which contribute to its cultural and economic significance. This estuary is characterized by its scenic landscapes, with numerous islands and a rugged coastline. The waters of the Ría de Arousa are influenced by both the Atlantic Ocean and the nearby Sierra del Barbanza, creating a unique ecosystem. It is also a popular destination for outdoor activities such as sailing, kayaking, and birdwatching.