you won't find a deal like the one from VisitMyHarbor for the rest of the world.
This is due to the licence and price
policy of the Hydrographic Offices around the world. [US set apart]
UKHO is giving away chart sets for a nominal fee under some special license
That's why we are discussing with HOs how to achieve a more logical solution for the leisure market. They are focussed on the commercial traffic and administrations. And have more or less severe pressure to be self financed or to make money
. This will take time, I fear.
In the meantime working with actual electronic charts implies using charts from the grey market or getting the wallet out of the pocket.
If you have some background charts you are comfortable with, you might go cherry-picking by licensing the latest official S-63 charts for some determined zones.
Going for a 3 months licensing period instead of a year brings costs down by a good chunk.
After the licensing period you maintain those charts, but updates are ceasing.
As Thomas said: more info at o-charts.org, our OpenCPN
gateway for that purpose.
And a call for lobbying for people with contacts at HOs