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.
Servizi
Benzina
Toilette
SupermercatoCOORDINATES
47.95636 N, -89.69020 E
Port Information
Telefono
Berth Sizes
< 10m
Profondità alla Bassa Marea Media
< 2m
Manovrabilità
Fair
Channel Marking
Fair
Porto di Entrata
No
Overseas Visitor Berths
Yes
Tipo di Molo
Fixed
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Sun
5AM - 9AM
08 February 2026
S 4 knots increasing to 6 knots.
−13 to −8°C
UV Index: 0 - Low
Cloudy
Sun
9AM - 1PM
08 February 2026
- S 6–8 knots.
- Increasing from −8 to −5°C
- UV Index: 1 - Low
- Cloudy
Sun
1PM - 5PM
08 February 2026
- S 6 knots.
- −7 to −4°C
- UV Index: 0 - Low
- Cloudy