Grayhaven State Harbor

Harbor Reservations:

Please contact harbor for reservation information.
Transient and seasonal slips available.


42° 21’ 20” N 82° 56’ 46” W

Contact Information:

Phone: 313-806-1637
Email: [email protected]
Harbormaster: Kevin Cohan

Radio Channel:


Dates Open:

Early May to mid-October



Address: 12550 Avondale Street, Detroit, MI 48215

Grayhaven State Harbor, at the foot of Maheras Gentry Park, offers 78 boat slips and can accommodate boats up to 35-feet. Special amenities offered at the facility include laundry, internet, a boater's lounge and a bonfire area. Not only is it located right next to a park with a playground and picnic shelter, but the park is also close to Belle Isle. Visitors can utilize one of the three nearby kayak rental businesses (with one on site) to explore the waterways of Detroit.