Kayaking along Pictured Rocks National Lakeshore, Upper Peninsula, Michigan. I did this for vacation last year. It's an eight hour day trip along the Pictured Rocks. Breath taking and well worth the money you spend on the experience!
Hike to a waterfall, climb to the top of a lighthouse and see a shipwreck in the land north of the Mackinac Bridge: Michigan's UP. Trip guide; http://www.midwestliving.com/travel/michigan/upper-peninsula/upper-peninsula-trip-guide/