supports:
Tides and Currents
AIS
GPS/GPSD
CM93_2
ENC
ECDIS
GPX input/output
Auto Pilot
Routes and Waypoints
Vector Charts
Raster Charts
Mac Version
Linux
XP
Vista
And More
Download OpenCPN
Contact for OpenCPN
Download Free Charts:
Free Boating Charts
Office of Coast Survey
OpenCPN Forums:
On SourceForge
Cruisers Forum