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 ~20 Water Lake Lot Size Small (<50) Lot Type Gravel Confidence High

Small marina with multiple finger docks and a central pier surrounded by forested shoreline on a lake, featuring a modest gravel parking area with no visible vehicles.

Aerial view of Rock Harbor Marina
Great Lakes

Rock Harbor Marina

MI

Rock Harbor Marina is located on Isle Royale, a remote island in Lake Superior within Michigan's Upper Peninsula, surrounded by the vast, pristine waters of the Great Lakes and serving as a gateway to this national park's rugged wilderness. It caters to recreational boaters and sailors exploring the northern Great Lakes, particularly those interested in fishing, touring the island's natural landscapes, and navigating the deep, clear waters of Lake Superior. This setting in a protected national park emphasizes its role in supporting environmentally conscious boating activities in one of the region's most isolated areas.

Capacity ~20 slips
Coordinates 48.1457, -88.4853

Marina Services & Amenities

seasonally season
Showers Laundry

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.