I went to see the 1st Montreal show on the 1st leg. After the show I had time to:
wait in the damn line to buy a shirt
stroll downtown montreal
have a beer with me buds
wander again in search of subway/bus terminal
by the time this was over I still could have caught the bus, it was still running according to the bus schedule... however because I never did find the damn terminal I had to catch a taxi. So even though I can't give you an exact time, I can tell you that you shouldnt have anything to worry about...
Except for the bloody terminal locale.
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Pictures in grey...