C-Map Max Chart AN-M252: Japanese Lakes (Update) GMDSS Log Books The hole in the center

The hole in the center of the compass rose makes it easy to mark your position

Whether planning a short trip or a long trek

Features GPS Waypoints for precise navigation

When used as the Answering Pennant it is hoisted at the Foretop

The Nicaragua Country Flag may be recognized as three

C-Map Max Chart AN-M252: Japanese Lakes (Update) GMDSS Log Books The hole in the centerWhy Update Your C Map Chart? Why Update Your C Map Chart? It is very important that the latest C Map charts are used when sailing out in the open water for safe navigation purposes. The C Map electronic chart libraries get updated twice a year to coincide with popular boating sessions. Included in the library updates are the latest notice to mariner updates from government hydrographic offices, updates to marina facilities, port services, photos and