It's the beginning of the tourist season in the National Capital Region and the city is buzzing with visitors.
The Rideau Canal provides a water link between Ottawa, situated on the Outaouais (Ottawa) River, and the city of Kingston, on Lake Ontario. It was completed in 1832.
In the summer, the canal attracts lots of pleasure craft. From Kingston to Ottawa the route travels along rivers and lakes and through a system of locks for a distance of about 200 km.
More background here.