High Quality Content by WIKIPEDIA articles! The Gatineau Hot Air Balloon Festival is a yearly festival, held in Gatineau, Quebec, Canada, and organized by a not-for-profit organization, during which hot air balloons of every shape and colour are flown and where 300 shows and performances adding up to over 60 hours’ worth of programming are taking place. More than 200,000 visitors and 1,000 RVs usually participate. It is held over four days in late-August and early September during the Labor Day Weekend.