We decided to rent a car in St. Malo to give us some flexibility on our time. Apparently the Avis office is near the pier so it should be easy to rent.
There are 4 of us from Gaithersburg going. We love wine also. We've been saving the labels off some bottles of Bordeaux. We'll do some research and see if we can visit any of the ones we like.
We'll have to have a DC area cocktail party on board!