Simple GPS or more advanced chartplotter is a matter of personal choice, but in my mind a chart is an absolute must.
I believe most Garmin units require a chip for Lake Winni at an additional cost of maybe $125. When I use my 700 series Garmin chartplotter on the lake it shows me almost nothing except waypoints. I am mostly an ocean boater.
I'm hoping some folks with GPS/chartplotters can add to the discussion about chips needed. I still keep my chart handy after 50 years of navigating and enjoying the lake.
Peter
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