Don't just trust any of the privately produced vector charts explicitly. We have, in this forum, found enough with problems with CM93. Other brands have their problems
. Check these vector charts against official sources, a yachttie with paper charts perhaps, before leaving. Trying to find someone who have used cm93/garmin in the area where you're planning to go, is another way. Double check with Google earth
is a third way.
There is official ENC
chart coverage for part of your route
, available for free, through the South China
Sea Hydro-graphic commission. Links available in the OpenCPN documentation
As you're on Win7, check out the new plugin for NV Digital Verlag. Coverage is available for part of your route
.Willkommen beim NV-Verlag, Arnis
, click on "more regions" to see the full coverage.
Using the Maptech
BSB4 plugin is a possibility, but I can't find much coverage for your route.
Note that you must have the latest beta release to use the mentioned plugins. Hopefully, the new 2.5 stable release, will soon be available though.