GeoGarage Marine, the portal to international marine maps, has added 227 marine charts for the Netherlands.
GeoGarage uses Google Maps to display marine charts from around the world. The site currently provides marine chart overlays from NOAA (US), DHN (Brazil) and Linz (New Zealand). Marine GeoGarage's web interface also gives subscription members access to all private charts from the UKHO (UK), CHS (Canada), SHN (Argentina).
GeoGarage Marine is not only a seamless chart viewer, overlaying charts at different scales on aerial and satellite imagery from Google Maps, but also allows the user to plot waypoints and to prepare navigation routes. These can be saved and uploaded to GPS (in gpx format or directly to Garmin GPS via its Communicator web plugin).