Trail des Crocs is a small nature race in Les Grandes-Ventes, Seine-Maritime, offering two trail runs and a walk. The 15.3 km Grand Croc is the longer race, and the 8.7 km P'tit Croc is the shorter one; walkers can participate in the 5 km Croc'ette. The Grand Croc begins first, with the shorter run and walk starting soon after.
The main route winds through the green countryside surrounding Les Grandes-Ventes, with fields and forest defining much of the course. The event has a history dating back to its early editions before the health crisis, when Team d'Eawy was involved. The commune later worked to revive the race. The firefighters' association of Les Grandes-Ventes assists with its organization, lending the event a local, volunteer-run character instead of the feel of a large commercial trail race.