Port Crescent is a really amazing campground to visit. The campground contains cabins, tent, and RV sites. Our site (95) was an electric only site but water was nearby.
Our site was on the sand but large enough to park the camper parallel to the campsite. we were well off the road there were no worries concerning passing vehicles.
The nature and wild life there are simply amazing and the sunsets on the beach were incredible. They were even more amazing because wildfire activity enhanced the fading rays of the sun.
We did buy the yearly MI recreation pass, not only for this but for some other stays we had planned in MI. The pass was $35 which was affordable.
For Astronomers this is a certified dark sky park the IDA. This is a Bortle 3 site with an SQM reading of 21.79 mag./arc sec2. I did not get to observe here due to smoke from wild fires.
Saginaw Bay is nearby and its a beautiful place to visit.
to Make sure you know where your gas stations are as they are a long way away from Each other. Also the water spigots in the park don't have hose connectors to either fill up with potable water at the dump station or bring water canisters with you.
Otherwise have a great time, we did!