The race will start in the ?chemin de la rivière? along St François River at Windsor to go to Kingsbury by a very fast gravel road. At Kingsbury, you will turn around the fen to arrive in a single track which passes in the pinewood. The trail follows a river and you will a run on a mountainside in the forest on a technical single track, technical enough to have fun. You will cross a trail for all-terrain 4x4 vehicles and you will not take it. You will go ahead. You will arrive at the top of a natural climbing wall. And you will go down. Just take a look back as you will have to walk in the stones because the view on the cliff is very beautiful. Then you will arrive in the Brompton section where some ascent will be waiting for you in the forest. Up hills and down hills will alternate, with some technical parts (climb-go down-climb-run fact-walk-climb-climb-climb-climb...). you will climb at the summit of the Mont Cathedrale to go down (again!!!) be careful because the descents can be very fast or not. Once again, big stones will be waiting for you. But hopefully, you will arrive to the ?Chemin des nénuphars?. At the end of this one, you will see a supplies place and the turn around, you will have run 44km. You will find here your first friend: your drop bag.