Hazards & notices
Shoals, works, and notices to mariners, plotted.
What's in your way
Shoals shift. Works happen. A buoy goes off station. Harbor plots every hazard and notice to mariners onto one map, so you never learn about the rock by hitting it.
What we track
shoals updated soundings over known bars works dredging, crane, and dive notices buoys off-station and missing aids closures temporary channel and fairway closures
Push to your helm
Subscribe and hazards land on your phone the moment they're filed — before you've cast the lines off.