On 28 November 2012, the bulk carrier Tundra departed Montréal, Quebec, under the conduct of a pilot, downbound in the St. Lawrence River for Halifax, Nova Scotia. At approximately 2148 Eastern Standard Time, the vessel exited the navigation channel and ran aground off Sainte-Anne-de-Sorel, Quebec. Fatigue was a likely factor in the pilot’s diminished situational awareness at a critical time when a course change was required.