The Osheaga Music and Arts Festival (French: Festival musique et arts Osheaga) is a multi-day indie music festival in Montreal, Quebec, that is held every summer at Parc Jean-Drapeau on Île Sainte-Hélène.The festival takes place on six stages with various audience capacities. Translated from their French equivalents, they are called "River Stage," "Mountain Stage," "Green Stage," "Trees ...