There are several marinas on the Coan and Yeocomico Rivers on the VA side of the Potomac. Other than St. Mary's, I don't have much knowledge of the MD side. Google Coan, Kinsale and Yeocomico and you should find a few. Sorry I can't help more and I couldn't offer an opinon on which might be a better choice.
I believe there are some Sailnet regulars that keep their boats on or near the Potomac that can probably give some better info. Keep checking and I'm sure they'll chime in eventually.
Edited: Meant to say I didn't know much about the MD side.
I believe there are some Sailnet regulars that keep their boats on or near the Potomac that can probably give some better info. Keep checking and I'm sure they'll chime in eventually.
Edited: Meant to say I didn't know much about the MD side.