Between raclettes and fondues, how about a little trail run to burn off some calories on December 6, 2025? During the holiday season, there are many races that allow you to enjoy the magic of Christmas, including the Lucioles du Josas, a trail run with a magical route betweentheJouy-en-Josas Christmas market , the lights,and the festive atmosphere, surrounded by the smells of cinnamon and mulled wine.
Two routes await you: 8 or 12 kilometers in the night version, both challenging and unusual with steps, elevation changes, in short, plenty of climbing by the light of your headlamp. For this edition, open to participants aged 16 and over, don't come in your sports gear—come in costume, based on thetheme of comics and manga, to meet a whole host of imaginary characters in the great outdoors!
Come on, put on your sneakers and enjoy this trail run in a magical setting!
The must-do trails in Paris and the Île-de-France region: intense races in the great outdoors
In Paris and the Île-de-France region, trail running attracts more and more runners every year who are looking to get away from it all without leaving the region. Between forests, valleys, and natural parks, nature running offers a multitude of courses and events, from the most famous to the most obscure, suitable for all levels. [Read more]
Dates and Opening Time
On December 6, 2025
Location
Place de la Marne
place de la marne jouy
78350 Jouy en Josas
Prices
€10 - €15
Official website
www.traildujosas.com



The must-do trails in Paris and the Île-de-France region: intense races in the great outdoors














