Fores'Trail 34 km is a trail race in Guînes, Pas-de-Calais, taking place in June. It is part of a larger race day offering 13 km, 23 km, 34 km, and 43 km trail runs, alongside a 13 km Nordic walk and youth races ranging from 1.5 km to 4.3 km.
The organizer provides distinct course maps for each distance, including the 34 km route, allowing runners to select the option best suited to their abilities. The event includes not only long-distance trail runners but also walkers, younger participants, and those opting for shorter trails within the same event structure. Support services feature timing, aid stations, finisher medals, restrooms, parking, photographers, and baggage check.