The following map shows the limits of the 21 Operational Navareas.
Clicking on a Navarea title will take you to the Navarea
Coordinators' website where Navigational Warnings are listed. (Note not all
Navarea Coordinators publish warnings on the www, some only provide Notice to
Mariners.)
NB The availability of Navigational Warnings on the web does not relieve Masters / Captains of the requirement to receive Navigational Warnings via IMO/IHO approved broadcast systems, as websites are not continuously updated and not necessarily monitored for correctness.