About Grand Portage Marina and RV Campground
The 27-slip Marina on Grand Portage Bay is located adjacent to Grand Portage Lodge & Casino and is owned and operated by the Grand Portage Band of the Chippewa. The Marina is centrally located on Lake Superior between Thunder Bay, Ontario and Grand Marais, Minnesota within a shallow, protected bay. Open early May through October, the Marina provides services for fishing and boating. Michigan fishing licenses (required if fishing out of Isle Royale), slip rentals, ramp launching, landing facilities, gas and tackle sales are available.



Comodidades
COORDINATES
47.95636 N, -89.69020 E
Port Information
Telefone
Berth Sizes
< 10m
Profundidade na MLW
< 2m
Manobrabilidade
Fair
Channel Marking
Fair
Porto de entrada
No
Overseas Visitor Berths
Yes
Tipo de doca
Fixed
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Fri
5AM - 9AM
27 March 2026
- W 6 knots.
- −7 to −4°C
- Cloudy
Fri
9AM - 1PM
27 March 2026
- NW 7 knots increasing to 11 knots. Gusts up to 21 knots.
- −7 to −3°C
- NW 0.4m at 2s period
- UV Index: 2 - Low
- Cloudy
Fri
1PM - 5PM
27 March 2026
- NW 8–13 knots. Gusts up to 20 knots.
- −6 to −4°C
- NW 0.5m at 2s period
- UV Index: 2 - Low
- Cloudy