Went up to Hawk Island park in Lansing today. Snow was good. There was one rail feature, one flat box feature, and a small kicker.
Hiked a bunch since the rope tow was not operating yet, but it was free ($3 parking fee). Definitely a good time and if you are looking to work on freestyle this is a super low cost way to get tons of good practice runs in. Not sure how much they'll be open the next few weeks with this weather, but it should be pretty awesome next year.