The St. Lawrence River is a vital waterway that runs from the Great Lakes to the Atlantic Ocean, serving as a significant trade route for both Canada and the United States. Synonyms for the St. Lawrence River include the St. Laurent River, the Fleuve Saint-Laurent (in French), and the Great River. It's also referred to as the "Garden of the Richelieu" as well as the "Cathedral of Canada" for its grandeur and beauty. Not only an essential transportation route, the river plays an essential ecological role, with its estuary being home to diverse and unique flora and fauna. The St. Lawrence River is a proud symbol of Canada and a natural wonder of the world.