Lagoa do Mundaú is a large lagoon located in the northeastern region of Brazil, specifically in the state of Alagoas. It covers an area of approximately 20 square kilometers and is known for its rich biodiversity, including various species of fish and birds. The lagoon is an important ecological site and plays a crucial role in the local economy, particularly for fishing and tourism. The lagoon is bordered by several municipalities, including Maceió, the state capital. It is connected to the Atlantic Ocean through a narrow channel, allowing for the exchange of saltwater and freshwater. This unique ecosystem supports both marine and freshwater habitats, making it a vital area for conservation efforts.