Why this time of year? Seems crazy. It would be such an unpleasant place to be. Temp below freezing by some margin, trying to fill up the tanks in lumpy weather out of blue drums of fuel piled all around the deck and off the back transom. Not my idea of fun.
All ports empty as it is so cold. In warmer times it could be such a nice trip!
Why not do it during summer and enjoy it? There must be a good reason.
good luck to them of course.