About Big Bay Harbor of Refuge
Big Bay Harbor of Refuge offers a range of services for boaters and visitors. These include: Mooring Facilities: The harbor has a 275-foot-long mooring bulkhead with 10 slips available for seasonal and transient boaters. Each slip is equipped with water and power hookups. Fuel and Sewage Services: Fuel stations and sewage pumping facilities are available. Restrooms and Showers: Clean restroom and shower facilities are provided for slip renters. Boat Launch: A boat launch and parking lot are open for day-use boaters. Harbormaster Assistance: The Harbor Host is available for assistance. The harbor is located on Lake Superior, just half a mile north of the town of Big Bay, Michigan

Facilities
COORDINATES
46.82778 N, -87.72644 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
2 - 3m
Manoeuvrability
Fair
Channel Marking
Fair
VHF Channel
16,82
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Side To
Yes
Tidal Flow
Nil
Active Winter
Yes
Weather Forecast
Wed
5AM - 9AM
18 February 2026
- E 11–14 knots.
- −2°C
- Rain
Wed
9AM - 1PM
18 February 2026
- E 12 knots increasing to 14 knots. Gusts up to 32 knots.
- −1°C
- E 2.8m at 6s period
- UV Index: 0 - Low
- Rain
Wed
1PM - 5PM
18 February 2026
- E 12–16 knots. Gusts up to 32 knots.
- −1°C
- E 2.5-3.0m at 6s period
- UV Index: 0 - Low
- Rain