Channel: 45° 46’ 42.1” N 84° 43’ 11” W. Phone: 231-436-5326. Off-season Phone: 231-627-9011. Radio Channel: 9. Dates Open: Mid-May to early October.Amenities:•water•electricity (30 & 50-amp)•restroom•gasoline•diesel•boat launch•showers•pump-out•fishing pier•refuse receptacles•laundry•dog run•day use dockage•grills/picnic tablesMichigan’s greenest harbor on the Great Lakes, Straits State Harbor is Michigan’s most eco-friendly harbor with eight wind turbines that are anticipated to produce a substantial amount of the electrical energy used to run the harbor. Located just across the Straits of Mackinac from Mackinac Island State Harbor, this harbor gives boaters an opportunity to enjoy the best of both harbors. This harbor is Clean Marina certified.