Laguna dos Patos is the largest lagoon in Brazil, located in the southern part of the country. It spans approximately 10,000 square kilometers and is situated in the state of Rio Grande do Sul. The lagoon is a vital ecosystem, supporting diverse wildlife and serving as an important resource for local fishing communities. The lagoon is connected to the Atlantic Ocean through the Guaíba River, which allows for the exchange of salt and fresh water. This unique environment fosters a variety of habitats, making it a popular destination for birdwatching and recreational activities such as boating and fishing.