When you make a reservation they charge you $10 if by phone or $8 if on line. Then when you get there you must pay $9 to get in. This is on top of the $28 dollar fee for a site without water. The showers are nice but completely wet because there is no shower curtain. Sites are mostly not flat. You can do better!
We buy the passport when we renew our vehicle registration so we're good for the year. We stayed next to the playground and across the street from the bathroom/shower on our first visit last year. We were able to get the same site for another four night stay this year. It had all we were expecting from a Michigan State Park. It would be a 5☆ if the beach wasn't over a 1/2 mile away.