For only Eur 10.- per month,I have access to detailed nautical maps in many
parts of the world from GeoGarage.
Linking to Geo Garage from within
OpenCPN using the POI feature,I have immediate and detailed access to
ports and congested
navigation areas. You can even set up POI´s linking to specific map areas.
You can create routes for planning purposes,using very detailed
charts, avoiding shallow
water and obstructions,and then save the
route as a .gpx file for later
import to
OpenCPN. See the coverage from the list on the right of the screenshots below.
A very useful utility and well worth the subscription fee.
Tore