Hard biking! This is 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. Also, the park collects visitor's fees of $15 per vehicle or $30 for an annual pass.