Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🚤 Full Service Marina Est. Slips ~60 Water Lake Est. Parking ~120 spaces Lot Size Medium (50–150) Lot Type Surface Confidence High

Medium-sized marina with multiple piers hosting dozens of boats, adjacent to a medium surface parking lot near a sandy beach on a lakefront.

Aerial view of Port Sanilac Municipal Harbor
Great Lakes

Port Sanilac Municipal Harbor

Port Sanilac, MI

Port Sanilac Municipal Harbor is a full service public dockage facility offering both seasonal and transient stays since 1951, with amenities including fuel dock, pump-out, showers, laundry, and boater's lounge near downtown restaurants.

★★★★★ 4.8 (162 reviews on Google) View on Google Maps ↗
Address 7376 Main St, Port Sanilac, MI 48469, USA
Capacity ~60 slips
Hours
Monday: 8:00 AM – 6:00 PM
Tuesday: 8:00 AM – 6:00 PM
Wednesday: 8:00 AM – 6:00 PM
Thursday: 8:00 AM – 6:00 PM
Friday: 8:00 AM – 6:00 PM
Saturday: 8:00 AM – 6:00 PM
Sunday: 8:00 AM – 6:00 PM
Coordinates 43.4314, -82.5389

Marina Services & Amenities

Fuel Dock Pump-Out Shore Power Showers Laundry Restaurant

Nearby Marinas in Michigan

Marina Parking & Access Control

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.