Baie Kouchibouguac is located along the northern section of the Northumberland Strait. Its principal geographical characteristic is a series of sand beaches and dunes. The bay's defined boundaries include its communicating waters inside a line drawn from a point at 46°50.221′N, 64°54.599′W on the dune. The surrounding area is part of the Kent Rural District. The bay's aesthetic is defined by these extensive sandy shorelines and coastal dune systems. Paddlers should be aware that this is a saltwater bay open to the Northumberland Strait, which implies exposure to tidal currents, wind, and potential marine traffic. The presence of the dune line noted in the regulatory coordinates likely indicates a significant natural barrier separating parts of the bay from the strait, which can affect wave conditions.