Here's the link to the marina. http://www.fontanavillage.com/marina/marina.htm
Looks like you'll have to call them to get current pricing info. My recollection is that it was about a 20 minute ride for 2 + the driver in a bowrider... probably about a 90 hp engine running full bore. Don't think that's something I'd want to paddle.
I recall a post on the SEFFF several years ago about someone who had paddled it from Cable Cove. (http://www.southeastflyfishingforum.com/forum/
) You might do a search on that site and see if you can find it.