Mackinac Island Trails Professional Review and Guide
"Who would have guessed that one of Michigan’s most popular tourist attractions was also home to Michigan’s most difficult section of singletrack? The first 1.2 miles of the Tranquil Bluff Trail will leave you anything but tranquil. Following a steep, rooty route along a cliff, the trail provides peek-a-boo glimpses of Lake Huron. It is also possible to skip this difficult portion of the trail and pick up Tranquil Bluff a little farther along the route.
The rest of the ride follows well-marked interconnecting singletracks that crisscross the middle of the island. In short, it is a spectacular place to bike, where motorized vehicles are not allowed and horses are the only other traffic on the streets. Horses are also common on the trails, so never submit to your need for speed. End your ride by cycling the paved road around the island, and take in the views of late-1800s Victorian homes. As you wait for your ferry ride home, sample the delicious fudge for which the island is famous. Tread: 0.7 mile of dirt road, 2.3 miles of paved road, 6.3 miles of singletrack."