I just try to find out how I can use openCPN
for my needs. One point is that I want to use vector-charts for my main sailing-area which is the Netherlands
and the Ijsselmeer in particular.
I know that there are S57-charts available for free (I already tested them within openCPN), unfortunately these charts
do not contain depth-data.
So I'm looking for S63-Charts for this area, but I only found proprietary charts
offered by Navionics
Does anybody know where to get non-proprietary S63-charts for the region mentioned above?