Sail workspace
Plan the passage. Brief the crew. Keep the boundary honest.
Route calculations, marine weather, under-keel checks, anchor distance, vessel records and passage logs in the browser.
Passage
Departure and destination
Reference map
Seamarks and direct course
OpenSeaMap seamarks are community reference data, not an official nautical chart. The straight course line can cross land, shallows, hazards or regulated areas. Shape and verify the passage with current official sources.
Community marine data
Marinas, harbours, moorings and slipways
Search current OpenStreetMap data around the destination. Results do not verify availability, booking, pilotage, depths, facilities, tide, hazards or operational status.
Vessel
My vessel
Skreppa web is a planning and supplementary display. It is not an official nautical chart, onboard AIS receiver, certified collision alarm or substitute for a proper watch. Browser anchor checks stop when the page or device stops running.