Trail de la Glissoire is a January trail event in Avion, a town in the Pas-de-Calais department of Hauts-de-France, located in northern France’s old mining basin. The race takes place in Parc de la Glissoire and offers two running options and one walking option, allowing participants to either compete or enjoy a winter walk.
The running courses consist of one or two loops within the park. The organizer describes the two routes as icy, embracing the cold-season atmosphere. Recent participation has increased significantly, from just over a hundred finishers to more than five hundred, giving it the character of a local event attracting a broader audience. The atmosphere is informal; participants are advised to wear hats, secure their shoelaces, and expect a refreshment stop at the finish line.