NavWarn — Somebody Already Hit That
Free crowdsourced boating hazard map with 224,000+ underwater dangers reported by real boaters. See debris, shallow spots, and obstructions before they wreck your boat.
Features
- 📍 224,000+ hazards mapped by the boating community
- 📥 Export to any GPS — GPX, KML, CSV formats
- ⚠️ Report hazards with photos and GPS coordinates
- 📍 Save personal waypoints — fishing spots, anchoring points
- 🗺️ Record GPS trails while underway
- 🌐 Available in English and Spanish
- 🛡️ 100% free, community-driven
How It Works
Boaters report underwater hazards so you don't have to find them the hard way. When one boater finds a hazard, every boater behind them knows about it. Like Waze, but for waterways.
NavWarn requires JavaScript to display the interactive map. Please enable JavaScript in your browser.