Historic Mill Creek park is a "new" attraction in northern Michigan. It was discovered in 1972 and opened to the public in 1984. It is a pretty spot, just outside Mackinaw City. There are a variety of nature trails, a comfortable little theater and a small museum that tell the story of the Mill and, the highlight, is a zip-line that lets your soar through space in the beautiful north woods. I am recovering from back surgery and simply watched my wife enjoy her flight; but a young lady with a broken back(!) took the zip-line and made a safe landing. Next year, I'm doing it, too.