Medium-sized marina with multiple floating docks along a river and a large unpaved parking area serving both boats and vehicles.
Au Gres is located on the western shore of Saginaw Bay along Michigan’s Lower Peninsula, near the mouth of the Au Gres River. The marina offers direct access to the sheltered waters of Saginaw Bay, a large inlet of Lake Huron. It supports recreational boating, including power and sail vessels navigating the bay and adjacent Great Lakes waters.
Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.
