View marine with satellite and terrain overlays. Access local weather forecasts. Use NOAA raster for navigation. Track position and route. Share maps and waypoints. Work offline without mobile coverage.
Book Card discounts for harbour tours, Alster lake trips, city tours, and museums. Explore detailed guides on sights and activities. Find tips and recommendations from experts. Navigate the city with local insights and personalized recommendations.
Measure boat speed over water by timing how long it takes to pass a floating object. Enter boat length and units in settings. Requires two people: one on the bow to throw an object into the water and another aft to track its passage.
Book towing services for registered vessels in US and Canadian waters. Access 24-hour emergency dispatch and unlimited towing coverage. Receive assistance via phone or . Track service status and payment details.
