James Bay (Baie James; Wînipekw) is a large body of water located on the southern end of Hudson Bay in Canada. Both bodies of water extend from the Arctic Ocean, of which James Bay is the southernmost part. Despite bordering the Canadian provinces of Quebec and Ontario, the bay and the islands within it, the largest of which is Akimiski Island, are politically part of Nunavut. Numerous waterways of the James Bay watershed have been modified with dams or diversion for several major hydroelectric projects. These waterways are also destinations for river-based recreation. Several communities are located near or alongside James Bay, including a number of Aboriginal Canadian communities, such as the Kashechewan First Nation and nine communities affiliated with the Cree of northern Quebec. As with the rest of Hudson Bay, the waters of James Bay routinely freeze over in winter. It is the last part of Hudson Bay to freeze over in winter, and the first to thaw in summer. Human presence along the shores of the bay began after the retreat of the glaciers at the end of the last ice age, around 8,150 years ago. A variety of indigenous cultures have lived in this area. At the time of contact with Europeans, the indigenous peoples along both shores of the bay were ethnically Cree peoples. Henry Hudson is believed to have been the first European to enter the bay, when he explored it in 1610 as part of his exploration of the larger bay that was named for him. This southerly bay was named in honour of Thomas James, a Welsh captain who explored the area more thoroughly in 1630 and 1631. James Bay is important in the history of Canada as one of the most hospitable parts of the Hudson Bay region, although it has had a low human population. It was an area of importance to the Hudson's Bay Company and British expansion into Canada. The fur-trapping duo of explorers Pierre-Esprit Radisson and Médard des Groseilliers convinced the English Crown, primarily Prince Rupert of the Rhine, a favoured nephew of Charles I and cousin to Charles II, that a colonial enterprise in the north would yield wealth in minerals and fur.