TIP
For more accurate local SonarCharts™, record sonar logs for your area and submit them to Navionics. It’s easy! Updated SonarCharts™ integrated with your data will be available after about one week. The more you contribute, the better the result.
Included in Navionics+, Navionics Updates, Platinum+ and HotMaps Platinum. Check coverage at navionics.com/ sonarcharts.
Upload of sonar logs is currently available with select GPS chartplotters. Check at navionics.com/sonarcharts.
Sonar log recordings Updated SonarCharts™
With SonarCharts™, our favorite holiday spot has been mapped in great detail for the first time in a century. DAVID, France
View SonarCharts™ for free at navionics.com/webapp
by simply zooming in
and toggling the icon.
Note: Norway, Sweden, Denmark and Finland restrict sonar recording at sea.
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