Lake Huron's largest city, Sarnia is one of Ontario's busiest marina centers, with 1,400 berths for recreational boating and Great Lakes ship traffic exceeding 6,000 passes annually. Ship viewing is best below the Blue Water Bridge, at Point Edward Waterfront Park. The bridge, the fourth busiest crossing between Ontario and the United States, has been duplicated; one span now carries eastbound traffic, the other westbound. Learn More...