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 ~120 Water Ocean/Bay Est. Parking ~80 spaces Lot Size Medium (50–150) Lot Type Surface (Striped) Confidence High

Well-organized marina with multiple parallel docks packed with boats and a striped surface parking lot containing numerous visible vehicles along the waterfront.

Aerial view of Safe Harbor Jefferson Beach
Great Lakes

Safe Harbor Jefferson Beach

Saint Clair Shores, MI

Safe Harbor Jefferson Beach is a marina located in Saint Clair Shores, Michigan, along the western shore of Lake St. Clair, which connects Lake Huron and Lake Erie in the Great Lakes system. Situated in the Detroit metropolitan area, it offers a sheltered spot for boaters amid the region's freshwater lakes and rivers. This marina primarily serves recreational sailing and boating enthusiasts navigating the expansive waters of the Great Lakes.

★★★★★ 4.5 (403 reviews on Google) View on Google Maps ↗
Address 24400 Jefferson Ave, St Clair Shores, MI 48080, USA
Capacity ~120 slips
Hours
Monday: 8:30 AM – 5:00 PM
Tuesday: 8:30 AM – 5:00 PM
Wednesday: 8:30 AM – 5:00 PM
Thursday: 8:30 AM – 5:00 PM
Friday: 8:30 AM – 5:00 PM
Saturday: Closed
Sunday: Closed
Coordinates 42.4698, -82.8794

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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.