RE: Garmin Blue Chart Software The Bluecharts have a lot more detail than the base maps. If you know your area really well, maybe you don't need it. But if you venture to new areas or get caught out in low visibility, you will realize the value of that extra detail.
I would think that you could go to a local electronics retailer and they would show you a demo of what is available.
Bethel Marine Electronis here in Melbourne can download the selected Bluechart on to a chip in the store. I am sure someone local to you has that caplability.
Good Luck |