The Indian River Lagoon is a grouping of three lagoons: the Mosquito Lagoon, the Banana River, and the Indian River, on the Atlantic Coast of Florida; one of the most biodiverse estuaries in the Northern Hemisphere and is home to more than 4,300 species of plants and animals.
The Lagoon contains five state parks, four federal wildlife refuges and a national seashore.
The Lagoon varies in width from 0.5 to 5 miles and averages 4 feet in depth.