Nautical and tidal charts
The Mingan Archipelago National Park Reserve of Canada is an authorized dealer of regional nautical charts (Nos. 4429, 4430, 4432, 4455 and 4456). These are on sale at the Havre-Saint-Pierre Kiosk and at Minganie research and interpretation center in Longue-Pointe-de-Mingan. They can also be obtained from the Canadian Hydrographic Service.
Tidal charts are available on the Canadian Hydrographic Service web site.
To have access to the best sources of information on the St. Lawrence consult the website St. Lawrence Global Observatory.