Art Souterrain Festival
        Underground art (Apr–Jun)
    
    
Since 2006, spring has seen portions of Montreal’s Underground City taken over by the contemporary art of the  Art Souterrain Festival.
The event’s free and spreads around about 6km of the system, making the whole thing a bit of a treasure hunt that reveals local lights, along with a few leading international artists.
Check the website for a glut of accompanying information including a number of  free mediation and discovery activities.