The Gulf of Saint Lawrence is part of the North Atlantic Ocean, and is located in the north east of Canada. It borders the Labrador Peninsula and Quebec to the north, Newfoundland to the east and Nova Scotia to the South. The sea acts as the outlet of the North American Great Lakes via the Saint Lawrence River. It has a surface area of around 226,000 km2. The sea contains many protected areas, due to them containing important migratory bird sanctuaries or Canadian National Park Reserves. The gulf played an important role in the history of the First Nations, as it was an important marine fishery as well as medium for transportation.