Chenal Nastapoka is a coastal strait located in Nunavut, Canada. It is a significant geographical feature, forming a broad, curved channel that runs parallel to the mainland coast. The channel has an average width of approximately 6 kilometers and extends in an arc-like shape for roughly 160 kilometers in length. This creates a substantial, open-water paddling environment. The Nastapoka River flows into the channel, and at its mouth, there is a series of islands that share the channel's name. As a large, exposed coastal strait, paddlers must anticipate significant wind exposure and the potential for long fetches that can generate challenging wave conditions. The water is saltwater, and the area is subject to tidal influences typical of the Hudson Bay region. There are no launch points, take-outs, or facilities for paddlers, indicating this is a remote wilderness area requiring complete self-sufficiency. The lack of information on boat traffic or regulations suggests minimal human activity. The primary considerations for paddlers are the channel's considerable size, its exposure to open water and weather, and its remote, undeveloped character.