More than 18,000 lakes
A clear, easy-to-use display of all detail from the best sources available! Search our lake list below for your favorite lakes.
From shoreline to deep water, Nautical Charts includes boat ramps and docks, spot soundings, contours and underwater structure such as road beds, bridges, stumps, culverts and creek channels.
Want better charts?
Get the most up-to-date charts every day. Navionics integrates the sonar logs sent by individual users with existing data to ensure SonarCharts becomes more and more precise, even in the ever-changing conditions of sea, lake and river bottoms. Only Navionics accepts sonar logs from all major plotter brands and mobile devices. See the video, and learn more from this article and SonarCharts stories!