C-Map 4D Chart AF-D209: South - East Africa (Update) Inland Sea of Japan An inset map indicates those

An inset map indicates those time zone areas that apply

British Admiralty Nautical Chart 4757: St George's Bay is a standard nautical chart

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C-Map 4D Chart AF-D209: South - East Africa (Update) Inland Sea of Japan An inset map indicates thoseWhy 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