Upload your sonar logs to build even better local charts for your area. Nautical Chart, SonarChart and Community EditsĮnjoy the exclusive SonarChart layer with up to 1 ft/0.5 m contours. Covers marine areas and a growing list of lakes! Community Edits are localized chart data contributed by the Navionics Community. SonarChart is an HD bathymetry map that reflects ever-changing conditions. Nautical Chart is a robust chart resource trusted by boaters worldwide. Max detailed charts for cruising, fishing and sailing!
