CC by SA OSM - Data can be used freely under the terms of the Creative Commons Attribution-ShareAlike 2.0 license.

OSM-Logo All Data of the base map is created by the OpenStreetMap-Project.

OSM-Logo All AIS-Data is created by the Marine-Traffic-Project.

OSM-Logo All weather information is created by the OpenPortGuide-Project.

Water Depth Logo The depth data are from the following sources: