The channel has been dredged to 12 feet recently to accommodate mega-yachts for Bimini Bay Marina, and the T docks of each of the other marinas normally have the depths you need; however, you should call the marinas first to make sure they have a spot for you...most of their other slips are 6 feet or less.
Welcome aboard! Be sure to begin here by reading "Atlantic Delivery".
Everything is as simple as it is, but never is it simpler-Albert Einstein
This is the handle, this is the tip and this is the shaft.
I try to get a handle on the tip but I usually get the shaft. (Explaining a ski pole)