Winter Sports Park is a local Petoskey institution rather than a resort, which is exactly its charm in the colder months. Close to downtown, it offers skating, sledding, and other winter recreation in a setting that feels more community park than commercial attraction.
It is seasonal and weather-dependent, so do not build a whole trip around it. But if you are in Petoskey in winter, especially with children, it gives you an easy way to lean into northern Michigan rather than just looking at the bay from indoors.