At the confluence of Fjord du Saguenay and the St Lawrence River estuary is Saguenay-St Lawrence Marine Park (established in 1998, 1138 km2). In 1990 the federal and Québec governments agreed to establish the marine park and that it is to be co-managed by the federal and provincial governments.
Lying north of mainland Canada, the Arctic Archipelago consists of 94 major islands (greater than 130 km2) and 36,469 minor islands covering a total of 1.4 million km2. Apart from Greenland, which is almost entirely ice covered, the Canadian Arctic Archipelago forms the world's largest High Arctic land area.
La Grosse Île, or Île de Quarantaine, 2.9 km long by 1 km wide, is located 46 km downstream from Québec City in the ST LAWRENCE RIVER estuary. The island is a wooded Appalachian ridge sculpted by coves and capes. In 1646 the Île de Grâce was ceded to Governor Charles Huault de MONTMAGNY.
Circulation is generally anticlockwise; off Greenland, relatively warm, salty water moves north, while along Baffin Island, cold, fresher water originating from the Arctic Ocean flows south. Icebergs, formed by calving off the Greenland glaciers, appear year-round, but are most numerous in August.