Ria Formosa is a natural lagoon located in the Algarve region of southern Portugal. It stretches along the coastline near the city of Faro and is known for its diverse ecosystems, including marshes, islands, and mudflats. The area is a protected nature reserve, providing a habitat for various bird species and marine life. The lagoon is also significant for its economic activities, particularly fishing and aquaculture. Local fishermen harvest shellfish, such as clams and oysters, while the surrounding waters support a variety of fish species. Ria Formosa is a popular destination for nature lovers and tourists seeking outdoor activities like birdwatching and kayaking.