What is the detail description on narwhals habitat?

Narwhals primarily inhabit the Arctic waters, particularly in regions around Greenland, Canada, and Russia. They prefer ice-covered areas and often live in deep, nutrient-rich fjords and continental shelf waters. During summer, they migrate to areas with polynyas—open water regions surrounded by sea ice—where they can find food such as fish and squid. In winter, they tend to congregate near the edges of the ice, using breathing holes to access the surface.