Hayes State Park
October 2026
About
Established in 1920, Hayes State Park covers approximately 654 acres. In a scenic setting, 185 modern campsites and two mini-cabins are nestled in wooded, rolling hills next to Round Lake (a no wake lake). Campers have access to Wamplers Lake, an all sports lake. Features include sand beaches, shaded picnic areas, boat launch, concession stand, canoe, rowboat, tube and paddle boat rentals, horseshoe pits, volleyball net and playground. The park is in the heart of the Irish Hills with close proximity to Michigan International Speedway, crafts and antique shows, and Hidden Lake Gardens. Metal detecting area.
Phone: 517-467-7401
Is Hayes State Park 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 Hayes State Park in Onsted, 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 Hayes State Park for cancellations is the paid part.