The Viri trail takes place in mid-September in Viriville, located in the Isère department of Auvergne-Rhône-Alpes, France. The event offers an 11 km walk for those preferring a relaxed pace through the countryside, alongside a 21 km trail run for more seasoned participants. The course winds through the forests surrounding Viriville, emphasizing trails, trees, and time spent outdoors over pure speed.
The event is part of the Bièvre Isère nature-sport calendar and maintains a relaxed, local atmosphere. Participants include runners, walkers, and mountain bikers, with a linked Cyclo VTT event. The organization is known locally for being straightforward and welcoming, providing food, snacks, and drinks on-site post-event.