Residential area with private small docks along a river bend, no dedicated marina parking lot visible.
South Marina is located in Harrison Township, Michigan, along the western shore of Lake St. Clair, a freshwater body that connects Lake Huron and Lake Erie within the Great Lakes system. This marina serves recreational sailing and boating activities on Lake St. Clair, catering to enthusiasts exploring the region's expansive freshwater waterways in southeastern Michigan.
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.