Dubreuillois have always sought out outdoor activities and motorized sports. In 1967, Jean-Paul Dubreuil (Napoleon Dubreuil's son) and his brother-in-law, Jean-Marc Pelletier, travelled by train to Hearst to attend a winter carnival. On their way back, they spotted snowmobile trails along the railroad tracks. The following winter, the two men, along with nine other snowmobilers, traveled from Dubreuiville to Hearst to attend the carnival.
After this first outing, they challenged the Hearst snowmobilers to make the trip. The following week, 52 Hearst snowmobilers traveled to Dubreuilville to attend the Chimo Carnival, marking the beginning of a long-standing tradition.
The tradition was to ride the rails one way and return on the ACR passenger train, load your snowmobile onto the attached freight car and recover from your weekend.