Green Lake is a part of the Waterloo State Recreation Area, a 20,000 acre piece of state land with so much to do! Hiking, swimming, boating, equestrian, a nature center, and that's just scratching the surface!
Green Lake is the rustic campground on the east end of the area. No electricity, 3 privies, a water pump, and a boat launch. No swimming area. Visit the Michigan DNR website for the other campgrounds located in the state park with their specific amenities.