The most biologically diverse estuary in North America, the lagoon has been designated an Outstanding Florida Water and an Estuary of National Significance. The site's mangrove wetlands and salt marshes filter runoff, stabilize sediments, maintain water quality and protect shorelines from erosion. 

This site is currently open, however, it has limited facilities. It is undergoing an aggressive restoration program to remove invasive plants and reintroduce native species.