While pedaling through Mackinac Island State Park, one scenic highlight is the Sugar Loaf lookout point. This breathtaking vista offers panoramic views over the forest and of the park's largest limestone formation rising majestically 75 feet tall. Once an island eroding in ancient Lake Algonquin, Sugar Loaf remained as an awe-inspiring tower of rock when the waters eventually receded to create this breathtaking look out spot.