Interesting thread! I really enjoy camping at MI state parks. In fact, there are very few private parks in the state I will consider.
Michigan state parks allow reservations 6 months prior to arrival. The reservations system I think is very good (www.midnrreservations.com
). You have to be on your game though if you want a certain site at a certain park. For instance, if you want a site at any popular state park on a holiday, you better plan on arriving a few days in advance of the holiday itself, maybe even a week, or likely you wont get a site. Some parks are very popular (grand haven, Holland, Ludington to name a few) and can be very hard to get in to. I guess I would say, plan ahead, have a back up place picked out just in case. I haven't found a "bad" modern state park in Michigan yet, and ive been to many. Some are even starting to put in FHU sites, most recently wilderness state park near the bridge.