Its name comes from the Montagnais word “Manouan ”, meaning “there where we collect eggs”. It rises to an enormous plateau and then spectacular cliffs dive into the water on the south side.
The island is noted for its limestone rock formations called “cays a chaux”, a unique phenomenon in the archipelago of Sept Îles. These formations come from the same slab of limestone as the monoliths in the Mingan Archipelago. Because of their fragility, visitors must be very careful when disembarking. A note of interest to budding archaeologists – the cays à chaud contain a lot of fossils.

  • Area: 
    290 hectares
  • Perimeter: 
    9,6 km
  • Height: 
    139 meters
  • Distance from shore: 
    12,2 km