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.
Installations
Essence
Toilettes
SupermarchéCOORDINATES
47.95636 N, -89.69020 E
Port Information
Téléphone
Berth Sizes
< 10m
Profondeur à la marée basse moyenne
< 2m
Manœuvrabilité
Fair
Channel Marking
Fair
Port d'entrée
No
Overseas Visitor Berths
Yes
Type de quai
Fixed
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Wed
5AM - 9AM
11 February 2026
NW 8–10 knots. Gusts up to 21 knots.
−10°C
UV Index: 0 - Low
Cloudy
Wed
9AM - 1PM
11 February 2026
- NW 9 knots decreasing to 7 knots. Gusts up to 20 knots.
- Increasing from −10 to −6°C
- UV Index: 1 - Low
- Partly cloudy
Wed
1PM - 5PM
11 February 2026
- NW 7 knots decreasing to 4 knots.
- −10 to −5°C
- UV Index: 0 - Low
- Mostly fine