5 Least Visited US National Parks

2. Isle Royale National Park

Number of Visitors: 28,965

Isle Royale National Park comprises a cluster of remote islands in Lake Superior, near Michigan’s Canadian border. Vehicles and wheeled devices other than wheelchairs are not allowed in the park. Visitors can enjoy a range of activities, including backpacking, camping, fishing, scuba diving, canoeing, kayaking, and boat tours. The park is located 56 miles from the Michigan mainland and can only be reached by seaplane or ferry. Ferries leave from Houghton, which is approximately 6 hours one way, and Copper Harbor, which is approximately 3.5 hours one way.