This is part of the Malbaie Salt Marsh which is a federally protected nature conservancy. The marsh is the largest natural lagoon in Quebec and is an important habitat for over 200 species of birds and 25 species of fish. It’s also an important location for migrating birds. This photo was taken at low tide and you can just see the sandbar in the background that separates the marsh from the ocean. At high tide there are gaps in the sandbar which allow the fresh and salt waters to mix.