We took Mari's nephew to Niagara Falls, as one does with visitors to Toronto - but then we did something a bit unusual. We dropped by the museum at St. Catharines, and watched a ship from the Netherlands cycle through lock three of the Welland canal. The Nephew was delighted - in his reserved Japanese way - because he's a big fan of such things.
Quite a crowd turned up for the event, and it turns out there's a radio station in Niagara that alerts everyone to bridge closures due to passing ships.
Compared to the gaudiness of Niagara Falls (the city) and expense of the boat trip we took to get into the falls, this was quiet and free. A great way to convey what Niagara's all about.