Lake Pontchartrain, New Orleans, LA, United States
This famous estuary covers over 630 square miles (1,600 square kilometers) with the major metropolitan area of the New Orleans Parish lying on its banks. The lake is named after Pierre Le Moyne d'Iberville,a French-Canadian explorer who was the first European to pass through the region in 1699. As one of the largest wetland areas in North America, it contains both freshwater and seawater. The bustling city of New Orleans is set along its eastern and southern shore, which is connected to Mandeville by the famous Lake Pontchartrain Causeway.