Full Distance Triathlon Canada-Ottawa: Course Details and Highlights The race begins with a 2-loop, 3.8 km (2.4-mile) swim in the scenic Ottawa River. Starting from Britannia Park, athletes navigate calm waters averaging 70°F (21°C) in temperature, ideal for a smooth start. Following the swim, athletes embark on a 180 km (112-mile) bike ride featuring 2.75 loops through Ottawa’s picturesque landscapes. This closed-to-traffic route offers smooth roads and mild elevation, allowing athletes to ...