James Bay is part of the North Atlantic Ocean and borders the Canadian provinces of Ontario and Quebec. The sea lies under the Hudson Bay and has a surface area of around 68,300 km2. The sea contains several islands, the largest being Akimiski Island. Many waterways of the James Bay have been dammed in or diverted to generate hydroelectric energy and have also become destinations for recreation. The area’s surrounding the bay are inhabited by several communities, including Aboriginal Canadian communities like the Kashechewan First Nation and the Cree. Just like its big brother, the Hudson Bay, the James Bay freezes over during the winter.