Located on the Saginaw River in beautiful downtown Bay City Michigan, at the end of Midland Street in Bay City's historical west-side business district. Pier 7 Marina is Bay City's oldest continually-operating full service marina. We are locally owned and operated. Pier 7 Marina is your full service marina for both sales and service. Our experienced staff can assist with any of your boating needs. Whether it's storage, dockage, parts, service, or boat sales, we can help!