The Dumoine River is not quite in an urban environment, but people from urban areas can have access to it. A lot of people from Ottawa do. I have gone down the Dumoine myself.
I think we need to think as well about watersheds within urban areas. I know there's work going on around the concept of
the Montreal Archipelago Ecological Park. I am not up to date on the details. But, in principle, it seems that it is an opportunity to accomplish, in the greater Montreal area, something similar to the Rouge national urban park.