Worldwide Updates
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, GPS
Enjoy the most current charts every time you go boating
How to Update Navionics Charts How to Update Garmin ChartsMore about the Heatmap
The Heatmap provides a visual representation of the quantity and the position of all the updates made in the last two years. It illustrates how dynamic and thorough the Garmin and Navionics database is and the amount of work we put into it.