Which popular sporting event is regularly held on Lake Ontario?

The Lake Ontario Triathlon is a prominent sporting event held on the waters of Lake Ontario, attracting participants from various regions. This triathlon typically features a swim segment in the lake, which is an ideal setting due to its accessibility and scenic views. Additionally, the event includes cycling and running segments that often pass through nearby scenic routes, making it a well-rounded challenge for athletes. The combination of swimming in Lake Ontario and the well-organized nature of the event contributes to its popularity.

While other events listed are significant in their own right, they do not specifically focus on Lake Ontario as the primary venue. For example, the Toronto Marathon, while a popular event, takes place on city streets, and the Ontario Sailing Regatta, while relevant to sailing, may not exclusively take place on Lake Ontario itself. The Canadian Rowing Championships, although they may take place on the waters of Lake Ontario, are not specifically known as a popular recurring event uniquely tied to Lake Ontario in the same way the triathlon is.