We went down in Feb a few years ago. Actually had to break through the ice to get out of Deale Md, but there was no ice in Solomans or anywhere south of that. We came into Norfolk covered in icicles (from the spray) but that's another issue. Don't know if the Dismal Swamp is open - we took that
route. There's a lot of deadfall, so our 6'
draft found quite a few "speedbumps", but otherwise no issue. You won't have the
draft, but imagine your props would be more exposed, so seek local
advice. Activecaptain is your friend. We ran the genny at the Dismal Swamp Welcome center as there are no plugins, and it was coooold.
You will have it all to yourselves down to Elizabeth City, and even then just a few hardy souls all the way down to
Florida. Only place that was closed for us was the Alligator River marina, but they had a guy on call.
I can recommend some marinas if you are interested. When you're in the cold all day, a hot
shower is definitely worth the $.