I have been to the Silver Lake State Park campground several times. I absolutely love it and go back as often as possible. The campground is standard bathrooms and campsites, but what really makes it is that it's right on the water and you have a great view of the dunes! You are a mile or so from the dunes entrance and a mile or so the other way from the lake Michigan beach.

Rent or bring a boat and beach it right up to the dunes where sand runs into Silver Lake on one side and runs into Lake Michigan on the other side. I am amazed every time I go.