Dear All,
I make my own maps using sources such as openstreet map for basic backgrounds and than use my own soundings, tracks and points to create detailed maps that are not covered by any official map that is sold. my maps are actually usable with reefs, coral heads, unmarked passage, passes and FADs are indicated.
Garmin no longer allows custom maps on it's marine series and it therefore requires users like me to patch my devices to allow for my maps to be viewed on the devices!
my 2 cents.
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