After a first warm-up between roads and trails, you will take the Côtes de Nances footpath overlooking the lake and will pass in the natural reserve of the Lake of Aiguebelette. Then, you will evolve in a wild environment on a technical path reserved for experienced trailers. Your effort will be rewarded by an exceptional 180° panorama of the lake at km5. The rest of the course will take place on alternating paths and tracks on the Epine massif, which are very pleasant to run on, offering frequent changes of speed and making the run fun. After reaching the Crucifix pass, you will come back down to Aigueblette-le-Lac by the old Roman road.