Re: Free or low cost GPS navigation software?
OpenCpn is really the greatest bit of free softwear on the net.
I use it in preference to a chart plotter, and its miles and decades further advanced than anything on iPad etc.
And the CM93 charts are on the net on a 4 hour download... Or just knock on any cruisers hull (that's been anywhere) and they will give you a copy.
Notes on a Circumnavigation:
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