Navigational Warnings

The Canadian Coast Guard issues navigational warnings to warn mariners of navigational hazards, defective aids to navigation and to provide important navigational information.

Contact your nearest Marine Communications and Traffic Services centre for more information about NAVWARNs.

Notices to Mariners (NOTMAR)

The notices to mariners provides the necessary information to update all of your charts and nautical publications. It will advise you of our new initiatives, services and also of some important announcements concerning the maritime community.

Shoals in the Waterways

The shoals catalogued here are those that are found in or along the banks of the commercial channels, in the zones under jurisdiction of the Canadian Coast guard Waterways Management Division. The shoals located in zones that are under other jurisdictions are covered in the Navigational Warnings.

All in force shoals sorted by date