They do, but in their website they will post a calendar. Look closely to follow up.
Look at their website for more details on opening times. This is a forum to ask locals questions. What I can tell you is I was up there last weekend. They are in the process of building the ice castles. I'd say they are only about 1/3rd to 1/2 way there. We need colder temperatures for them to make faster progress.
I dont think they are open for the season yet
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