Indeed, ice has appeared in the harbours here as well. ( Lake Ontario) The open water
( outside harbours ) is of course not frozen. It never freezes. That does not mean I would enjoy sailing out there in this weather
We are lucky here, ice boats do come out from time to time. Keep in mind conditions are very specific for ice boats. The snow has to have blown away for one thing. They are something to watch. Are they ever fast!!! It is astonishing.