It also includes a lagoon with rich aquatic vegetation and associated marsh. A rich fauna including notable species of mammals, reptiles and birds is supported. Human activities include environmental education, recreation, low-intensity grazing, subsistence farming and intensive shrimp farming. The area has great potential for the development of ecotourism. Nature Reserve A freshwater ecosystem of peat bogs, swamp forests, lakes and rivers.
Vegetation includes dwarf pine shrub, reedbeds and rare or endangered orchid species.
Numerous species of vulnerable or endangered waterbirds use the area for breeding. The site is an important area for water supply, conservation education and scientific research. Human activities include agriculture and sport fishing. Human activities include fishing, hunting, agriculture, scientific research, environmental education, ecotourism and ranching. Small settlements of indigenous people are present.