Sept Îles Archipelago

385, avenue Arnaud
Sept-Îles (Quebec) Canada
G4R 3A8
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Located on the shores of a bay protected by the seven islands that gave it its name, the municipality of Sept-Îles boasts a splendid archipelago in the heart of a region recognized as one of the five best places in the world to observe and follow whales. A sea excursion in this archipelago offers you front-row seats to a unique nature show, with the blue sea and sky as backdrop, the cries of the seabirds as musical accompaniment, and magnificent sunsets to add to the magic of the experience.

Each of the archipelago’s islands has distinctive features. Corossol Island is a bird sanctuary and a perfect place for whale watching. Blue mussels are cultivated near Grosse Boule Island. Grande Basque Island is the only island with hiking trails and campsites; you can also participate in interpretive activities with naturalist guides that focus on the marine environment. You can also explore the archipelago by Zodiac or sea kayak. Finally, this is an exceptional site for scuba diving. Explore three nearby wrecks: Le Corossol, the Jean-Marc Soucy and the St. Olaf.

Discover the flora, fauna and mysteries of the archipelago during an unforgettable adventure!

Opening dates

June to mid-September (may vary depending on the excursion company)


Varies depending on the activity


Varies depending on the activity


Recommended for all activities

Payment methods

  • Cash  Cash
  • Travelers Cheque  Travelers Cheque

Activities available

Take the time to breathe in the fresh air while hiking on Grande Basque Island, where you can explore 12 km (7.5 mi.) of trails. Ascend one of the island’s two high points to admire impressive views of the bay.
Sea Kayaking
Enjoy nautical activities of all kinds in Sept-Îles Bay, off the local beaches. Experienced sea kayakers can explore the bay and land on Grande Basque Island.
Sea Excursions
Discover the archipelago during a Zodiac excursion (available daily) and you are likely to see marine mammals! Interpreter guides will be happy to share the bay’s colourful history with you.
Wildlife Observation
The bay is home to a rich biodiversity. Encounter whales during a cruise in the archipelago, touch a starfish on Grande Basque Island and admire seabirds on Corossol Island!
Interpretation Sites
Discover the history of Sept-Îles and the archipelago by visiting the Tourisme Sept-Îles interpretive kiosk located in the marina. While you are there, be sure to also admire the Hermel, the rowboat Mylène Paquette rowed solo across the Atlantic!
Gardens, Parks and Natural Sites
Hiking and wilderness camping are available on Grande Basque Island. Come and discover beautiful beaches, 12 km (7.5 mi.) of trails as well as local flora and fauna. Naturalist guides are available on site to answer your questions.
Bird Watching
Corossol Island is one of the largest seabird sanctuaries in Eastern Canada. You can observe many different species on the island, including cormorants, gulls, eiders, terns and razorbills.


  • Picnic area
  • No pets allowed

How to get there

Private boat companies offer cruises in the archipelago as well as shuttle services to Grande Basque Island departing from the Sept-Îles marina.

To discover the archipelago, reserve your cruise with one of the following companies:

Affiliations and distinctions


  • Tourisme Côte-Nord
  • Tourisme Sept-Îles
  • Aventure Écotourisme Québec (AEQ)


  • Grande Basque Island has received the AEQ Seal, which certifies that the company adhere to high quality and safety standards established by adventure tourism and ecotourism professionals in Québec. In addition, the outdoor activity on offer meets all environmental, ecotourism and safety standards.

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