Magis'Trail is a set of trail races based in Luynes, in Indre-et-Loire, around the start of December. The main race is the Magis'Trail, a 25 km run with about 450 m of climbing, joined by the Trail des Vallées at 16 km with 370 m of climbing and the Trail des Coteaux at 8 km with 140 m of climbing. There is also a nature walk on the same route as the short trail, but it is untimed and has no bibs, ranking, or prizes. AS Luynes organizes the event, and the longer race counts toward the departmental Trails 37 challenge.
The routes use paths and woodland around Luynes, with sections crossing into nearby Saint-Étienne-de-Chigny. The event works as a cold-weather tune-up before the end-of-year holiday races, with choices for runners who want a short outing, more climbing, or the full distance. A share of the proceeds goes to Sapeurs Lipopette, a charity that supports sick children at the CHU de Clocheville hospital in Tours.