The Trail Robert le Diable passes through Moulineaux in Seine-Maritime, Normandy, beneath the historic Château Robert le Diable. This early March town trail includes significant elevation: the 30 km race offers 1,100 meters of ascent, the 15 km features 550 meters, and the 9 km still gains 350 meters. The primary races commence in the morning, with shorter children’s distances following, ranging from 0.4 km to 1.5 km.
The location defines the event's character. Participants encounter a challenging urban trail instead of a flat road course, with the château overlooking the town and its park, offering views of the Seine. The available distances cater to experienced trail runners, individuals seeking a shorter, steep challenge, and young participants in affordable kids' races. The event's own description notes its demanding nature, aligning with the course profiles: even the 15 km presents sufficient elevation to test runners' legs.