We just left Port A, Island Mooring Marina, for Isla Mujeres. If you end up at IM, get used to eating well as Dave at the end of 3 dock cooks about 3-4 nights a week when he's in town. There's a great bunch of people at the marina. Say hi to Dave for us and Jimmy & Libby, also on 3 dock. They are in a 36 Catalina that is for sale.
Enjoy Port A.