My uncle just arrived in Fairbanks yesterday and found nothing to do here

Guess he didn’t choose a good timing, early this month he decided to travel to Anchorage and Fairbanks for a week, so he booked the tickets and airbnbs without much planing, other than hot spring and aurora he planned for tomorrow there’s still a couple of days left, but it seems most of the activities here are closed, any place you could recommend to visit? Thanks