Explore OpenSeaMap, a free and detailed nautical chart for sailors, divers, and maritime enthusiasts worldwide.

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OpenSeaMap was launched in 2009 in response to the great need for freely accessible maritime maps. The aim of OpenSeaMap is to add nautical and tourist information of interest to the mariner to the …

OSM - Data can be used freely under the terms of the Creative Commons Attribution-ShareAlike 2.0 license. All Data of the base map is created by the OpenStreetMap-Project. All AIS-Data is created …

You are either using a browser that does not support JavaScript, or you have disabled JavaScript. OpenSeaMap uses JavaScript for its maps. not found VAR 3.5°5'E (2015) ANNUAL DECREASE 8'

Aug 29, 2025 · The Trip Planner works as a tool to measure course and distance, to create routes -getting for each section the true course, the distance and the coordinates of the starting point and the …

Time (UTC) 19.12.2025 18:00 20.12.2025 0:00 6:00 18:00 21.12.2025 6:00 18:00 22.12.2025 6:00 18:00

OpenSeaMap offers free nautical charts with weather updates, sea marks, harbours, and aerial photos for navigation enthusiasts.

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You are either using a browser that does not support JavaScript, or you have disabled JavaScript. OpenSeaMap uses JavaScript for its maps. not found VAR 3.5°5'E (2015) ANNUAL DECREASE 8'