Gem Nature Run, previously the EnerGem Trail, is a trail-running event held in Gémenos, a village in the Bouches-du-Rhône region at the base of the Sainte-Baume massif. It takes place in October within Parc de Saint-Pons, offering two adult nature-race choices: a 15 km race with 300 m of elevation gain, or an 8 km race with 150 m of elevation gain.
The course follows the park’s trails through a 1,796-hectare area featuring greenery, waterfalls, cliffs, and the foothills of Sainte-Baume. A notable feature along the route is the old monastery, which was converted into an abbey in 1223. The event also includes four children’s races, ranging from 750 m to 3 km. Previous editions began at the square outside Gémenos town hall, prior to the transition to the Saint-Pons format.