The SS Fort Cataraqui was a Canadian cargo ship built in 1943. It was part of the Fort class of vessels, designed to transport goods during World War II. The ship was primarily used for carrying supplies across the Great Lakes and played a crucial role in supporting wartime logistics. In 1947, the SS Fort Cataraqui sank in Lake Ontario after a collision with another vessel. The incident resulted in the loss of several lives and highlighted the dangers of maritime navigation. Today, the wreck serves as a reminder of the ship's history and the challenges faced by those who navigated the waters during that era.