Port Nelson is located at 57°05'N, 92°24'W within the estuary of the Nelson River in Nunavut, Canada. This is a remote, historic site on the western shore of Hudson Bay where explorer Thomas Button wintered in 1612-13. The area is characterized by its position at a major river mouth on a vast, exposed coastline. Paddlers must approach this location with the understanding that it is a high-latitude, saltwater bay subject to significant tidal ranges, strong currents, and severe weather typical of Hudson Bay. The open exposure to Hudson Bay means wind fetch can be extensive, creating conditions for large waves and swell, particularly during onshore winds. The presence of the Nelson River estuary indicates that paddlers will encounter mixing zones where river outflow meets tidal currents, which can create complex and potentially hazardous water conditions. There are no facilities, amenities, or designated access points. The extreme remoteness and lack of any nearby settlements or services necessitate complete self-sufficiency, including all safety and rescue equipment, and a detailed understanding of wilderness survival. The best season for any paddling would be the brief summer window when ice is absent, though water temperatures will remain cold year-round. The primary appeal is its historical significance and stark Arctic coastal environment, but it presents a serious expedition-level challenge suitable only for highly experienced and prepared paddlers familiar with Arctic marine travel.