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.

Nautical Chart

From shoreline to deep water, Nautical Chart includes boat ramps and docks, spot soundings, contours and underwater structure such as road beds, bridges, stumps, culverts and creek channels.

Community Edits

Benefit from valuable local edits made by Navionics mobile app users, like bait shops, fuel docks, seasonal buoys and fishing spots. Viewable on select GPS chartplotters.

Freshest Data

Take advantage of daily updates when you download Freshest Data - free for one year with your new HotMaps Premium card!


Use Navionics Updates with your older HotMaps Premium card to access valuable Navionics+ content including SonarChart™ HD bathymetry and one year of daily updates.


HotMaps Premium is compatible with chartplotters from most leading manufacturers.


Check out your favorite lakes on our WebApp to see the same Nautical Chart available for your GPS chartplotter.

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 SonarChart 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 SonarChart stories!


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