With the longest U.S. freshwater coastline and 82 state-sponsored harbors, boating the Great Lakes brings endless opportunities. Put your next boating trip on the books with these helpful resources.
The Cheboygan Lock and the Crooked River Lock have REOPENED (as of 6/26/26).
Michigan's harbors offer a variety of amenities and activities for both vacationers and staycationers. Whether you're looking to sleep on your boat or tie it off for the night, Michigan harbors have something to offer all boaters.
Use our interactive map to find harbor locations and reservation details.
Interactive harbor map & reservation info »
This guide is not intended for navigational use. Please refer to your lake charts as a guide for navigational information.
Planning your arrival? Check out our new aerial drone footage to see exactly what it looks like to navigate from open water into the harbor, helping you visualize the overall layout before you pull into your slip. Please note: We're building our list and more videos will be posted soon.
Grayhaven State Harbor is now under DNR management. As we begin our first season of operations, please note the following updates for 2026. While transient slip reservations opened on March 15, please be aware that electrical service is unavailable this season. To book a slip or for any questions, please contact us at 313-269-2857.
Ready to book? Head over to MiDNRReservations.com. To find available transient slips, make sure to click on the "Harbor" tab. Then, enter your specific search criteria.
Review official check-in and check-out times, alongside general harbor rules, to ensure a smooth stay.
Looking for a long-term spot? Find seasonal rates based on your specific slip length and rate type.
Just staying for a night or two? Transient rates are calculated based on your boat length and rate type.
You're at risk by entering the water near a boat or dock powered by electricity.
Rip currents, high waves and other dangerous currents and wave conditions can occur in the Great Lakes.
Water levels forecast, weather and more from the U.S. Army Corps of Engineers.
