Ship map of the Baltic Sea
Vessel positions from AIS on the southern Baltic: the Gulf of Gdansk, the Pomeranian Bay and port approaches.
Ship map of the Baltic Sea
AIS map by vesselfinder.com; content from the external service loads after you click, and the service then receives your IP address.
Vessels broadcast their position, course and speed over AIS; the map shows ships within range of coastal stations and satellites. The data belong to vesselfinder.com and load only after you click, so until then the page connects to no external service.