Hey Scubadoo!! My wife and I recently returned from AC and stayed at CM's and we had a terrific time!! I'm sure you will too. The water taxi's run pretty regularly, about every two hours or so, and it is a local business, not anyone with a boat. it does get to be pretty expensive though, TIP: I'm sure the folks at CM's will tell you this when you arrive, all you have to do is find out when they are heading to town to pick-up or drop-off guests and you can hop a ride with them for free. We were able to get back and forth to SP pretty much whenever we wanted to. The ferry is a riot! two kids pull you across the small "cut" for a few bucks. It is the only way to get to town and back by golf cart. Feel free to email me any questions you may have email@example.com My wife and I loved AC sooo much we're already booked for next year!!! Have a great trip!!!!!!!!!!!!!!!!