Hard
Biking
Not actually a trail, nonetheless, ambitious cyclists can test their quads and their lungs on this 7.1-mile paved drive that winds through beautiful hardwoods up to the dune plateau some 450 feet above Lake Michigan.  Yet another amazing view awaits at the Main Dune Overlook.  Take a Gatorade break at the view platform before embarking on what has got to be one of the area's most hair-raising downhill rides.  Check your breaks before you start down!  Entrance to the drive is on M 109 between Glen Haven and Empire in the Sleeping Bear Dunes National Lakeshore.  Mountain bikes are not allowed on any of the National Park's trails.  Also, the park collects visitor's fees of $10 per vehicle or $20 for an annual pass.