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Why Do I not See Any Depth Contours in My Navionics Boating App?
If you are unable to view the depths (contours) within the Navionics® Boating app and have an active subscription or trial period, you will first need to make sure that your settings for the depths are turned on.
Check your Depth Contours have a value for them or are set to ALL, and your Water Level is set to 0'.
You also will want to ensure that your charts are properly downloaded and updated.