Glass-Bottom Boat Shipwreck Tours | Munising, Upper Peninsula Michigan | "Lake Superiors natural underwater museum featuring a rare, fully intact, wooden sailing ship that was built before the Civil War and sits only a few feet from the surface of the lake."
Cliff jumping from Blackrocks in Marquette, MI (Upper Peninsula). One of the best things to do in Marquette if you're a little adventurous! Read all about it here! http://www.thingstodointheup.com/black-rocks-marquette/