The Michigan Department of Natural Resources says that Saugatuck Dunes State Park offers:
…2.5 miles of secluded Lake Michigan shoreline and 1,000 acres of steep slopes, rolling hills and fresh water coastal dunes more than 200 feet tall. The beach is a two-thirds mile hike from the picnic parking area.
The park’s major attraction are the long sandy beach and the 300-acre natural area, which contains a coastal dune system containing three endangered plant species. Nature enthusiasts, birdwatchers and hikers are the predominant day users.
The park, located in Allegan County, is relatively undeveloped. The land was acquired in 1971 from the Augustinian Order, who used the buildings as a seminary. When the state took ownership, the structures were used as a prison and state police offices.
Terry says that this is one of her favorite places to hike and hang out. See lots more pics in her Saugatuck Dunes album on Flickr.