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.
Instalaciones
Gasolina
Baños
SupermercadoCOORDINATES
47.95636 N, -89.69020 E
Port Information
Teléfono
Correo Electrónico
Berth Sizes
< 10m
Profundidad en Marea Baja Media
< 2m
Maniobrabilidad
Fair
Channel Marking
Fair
Puerto de Entrada
No
Overseas Visitor Berths
Yes
Tipo de Muelle
Fixed
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Wed
5AM - 9AM
15 July 2026
N 8 knots decreasing to 5 knots. Gusts up to 23 knots.
Increasing from 19 to 22°C
Calm sea
UV Index: 0 - Low
Cloudy
Wed
9AM - 1PM
15 July 2026
- N 3–7 knots backing W 3-7 knots.
- 22 to 26°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Wed
1PM - 5PM
15 July 2026
- W 4–7 knots.
- 23 to 26°C
- Calm sea
- UV Index: 0 - Low
- Cloudy