If you're not a big fan of live drums, that's the other option to get it on on Sundays. Picture this: a huge gathering of party people dancing under the sun from 3 (the site opens earlier, but it's getting real busy by the mid-afternoon) until 7ish, on Sundays. It features local and guest DJ's: Akufen, Mini, Tiga as well as Rob Mello, Richie Hawtin, James Holden. It will alleviate you of 5$, which is worth it.
To get there, it's not too complicated, you just take the metro and ride it to the Jean-Drapeau stop. It's on an island, to make it a lil' more exotic.