Download coastal and inland waters charts and map layers with great flexibility (Card max download available 2 GB).
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Want better charts? Go boating!
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!