Trail du Porteur d'Eau is a long-running trail race based in Thorigné-Fouillard, a town on the edge of Rennes in Ille-et-Vilaine, Brittany. The event uses trail routes only, so it is a proper off-road race rather than a road run with a few dirt sections.
The association Coureurs d'extreme organizes the race. Its popularity is clear from the turnout: more than 1,100 runners crossed the finish line, supported by 75 volunteers, with results posted on Klikego and race photos shared online afterward.