le Terril' Ble Bossu - Méricourt

Are you ready to face "Le Bossu"? Test your endurance at Le Terril’ble Bossu de Méricourt on November 23, 2025, a unique, non-stop loop challenge where the goal is to complete the grueling 8.5km, 30-obstacle course as many times as you can before the final cutoff. This isn't about a single fast time; it's a pure battle of grit against mud, obstacles, and your own limits, all fueled by an electric, family-friendly atmosphere. With a single start at 9:00 AM and free activities for kids, you can push yourself knowing the whole family is part of the adventure. Leave the timer behind and embrace the madness—this is the ultimate test of fun, courage, and sheer persistence in the Hauts-de-France