Grayhaven State Harbor
October 2026
About
Grayhaven State Harbor offers 78 boat slips that can accommodate watercrafts up to 30 feet. The harbor has a park-like atmosphere boasting special amenities such as transient docks, a laundry facility, bathrooms with showers (soap/shampoo included), wi-fi, a boater’s lounge, sailing lessons and a bonfire area. Not only is the facility located right next to a park with a playground and picnic shelter, but the park is close to Belle Isle Park. Visitors can utilize one of the three nearby kayak rental businesses (with one on-site) to explore the waterways of Detroit. Sailboat and powerboat tours available.
Phone: 313-806-1637
Is Grayhaven State Harbor fully booked?
A campground showing no availability is almost never full for good. People cancel — plans change, weather turns, someone books three weekends and keeps one — and the site goes straight back into the booking system, usually without warning and often at odd hours. The reason sold-out campgrounds feel impossible is not that sites never free up; it is that nobody is watching at the moment they do.
CampHawk watches Grayhaven State Harbor in Detroit, MI for you. We recheck it every 15 seconds, around the clock, and the moment a site opens we send a text, an email and a push notification, with a link straight to the booking page.
Searching is free and needs no account — the calendar above is live right now. Watching Grayhaven State Harbor for cancellations is the paid part.