What is this?
UPDATE (July 18): Nobody's gotten it yet (beyond "it's a fountain"), so here's a hint:
Now does it seem clearer?
UPDATE: Finally we have the correct answer: It's the artificial waterfall outside the Musée d'art contemporain at Place des Arts.
A fountain :P
Riopelle's La Joute
http://en.wikipedia.org/wiki/La_Joute
That's an easy one: it's the town hall luxury bathroom.
What TIM said.
@Tim: OMG I go by La Joute every single day not knowing that's what I'm looking at... My guess is it's another broken water main.
I'm guessing my answer was wrong, given that there seems to be no update.
Second guess, the fountain outside of Jean-Drapeau station on île Sainte-Hélène, where there are a number of water jets that shoot out horizontally into a large basin.
http://maps.google.ca/?ie=UTF8&ll=45.511674,-73.533795&spn=0.002662,0.004699&t=h&z=18
I don't think that's it, but it's all else I can think of at the moment.
Peel Basin.
Wow, I thought this would be one of the easiest ones ever. Keep the guesses coming.
It can't be the little waterfall outside the original plaza of the Palais des congres, across from Guy Favreau, can it? Don't even think that's turned on anymore,...
From the Chinese Garden at the Botanical Gardens?
I'm grabbing at straws here...
Nope.
I've added a hint to alleviate the straw-pulling.
Place des Arts waterfall?
The thing at the Old Port?
I went looking for inspriation on Flickr. "Fontaine Montréal" gives a lot of false positives (mostly on "parc la fontaine") and scrolling through the results for "fountain montreal" you would believe there were only some six fountains in Montreal (Place Vauquelin, Place Montreal-Trust, Carrée Saint-Louis, Centre de commerce mondiale, Complexe Desjardins and Place d'Armes).
Apparently I needed to look up "matching skirt" in my keyword search.
http://www.flickr.com/photos/amanova/268031954/
So, my final answer is "Place des Arts" (*locks in his answer*)