I just stumbled across this race...
It's a spectator friendly course:
SWIM: 3.8 Km (2.4 mi.) Time Limit: 2 hrs
The 3.8 Km (2.4 mi) swim will be in the Olympic Rowing Basin. The Basin is a 2 km long, 100 m wide and 3 m deep swimming pool. There is no current in the basin. The water has been tested and is superior for swimming. Wind will have zero wave effect. The expected water temperature will be 22°C (around 72°F) and we recommend wet suits. The course is 2 laps of 1900 metres, a down-and-back swim. Spectators can walk along the basin wall on the stands side and watch the swimmers.
BIKE: 180 Km (112 mi) Time Limit: 10 hours
The 180 km (112 mi) cycle will consist of 41 laps of the Circuit Gilles- Villeneuve which is the site of the Formula 1 Canadian Grand-Prix. The 4.4 km loop has the best road surface in North America. Our computer timing system will count the laps for the triathletes. On each lap you will have access to the aid station or "PITS" (see info on aid stations). The distance on your bike computer will give you a good idea of where you are on the course and you can check this against our count which is shown on a large screen video monitor coming out of the hair pin turn. This monitor indicates your bib number and the number of laps which you have completed. REMEMBER, EXIT THE COURSE WHEN THE MONITOR INDICATES 41 LAPS!
MARATHON: 42.2 Km (26.2 mi) Time Limit: 16 hours
The 42.2 Km (26.2 mi) marathon starts at the back of the Transition Area. You will run directly onto the basin wall and circle the Olympic Rowing Basin 4.6 Km route 9 times. The course will have you pass to the right of the Finish Line on the water side and through the Triathlete Village 9 times. In the AV you wil go under any swimmers exiting the basin on our bridge. The run course is flat and fast. On your 9th lap you will be given a wristband. This will signify to the course marshals that you have now completed the marathon and may enter the "home stretch" to the finish line.