The living map of Lake Winnipesaukee

Live GPS · Community hazards · Local spots · Free to start

How it works
Built for boaters · Works as a PWA · Free core features · Open data

What's on the map

Everything you need on the water, in one calm view.

Real-time position + soft teal route lines

Your live GPS dot, speed, heading, and a calm teal trail that draws behind you as you move.

Tap to mark (and see) hazards

See community-reported rocks, shoals, and seasonal hazards. Drop your own with one tap.

Discover marinas, food, and lake stories

Marinas & fuel, restaurants by boat, sandbars, dive sites, and historic landmarks.

How it works

Open it on your phone, grant GPS, go.

Open the map

Works in any browser. For the best feel, add it to your home screen — it's a PWA.

Start GPS

One tap grants location permission. Your dot starts updating immediately.

Boat

Speed, heading, and a soft teal trail draw behind you as you cruise.

Mark spots

Tap + to add buoys, hazards, restaurants, and other points of interest.

Not a substitute for official charts or prudent seamanship. Crowdsourced buoys, channels, and seasonal hazards may be missing, mislocated, or out of date. Always confirm visually against official NH Marine Patrol buoys and a printed cruising chart.
Winni Nav Live GPS · Recreation aid
📍 Tap the map to place a buoy or hazard
Speed 0.0kn
Heading °
REC GPS off
About / data sources