La Trilogie d'Auriol begins at the Complexe sportif les Artauds in Auriol, bordering the Bois de la Lare, and leads participants into the Sainte-Baume Regional Natural Park. This trail and nature-running series offers three adult distances: the 23 km Trail des Encanaux, the 11 km Course Nature des Lagets, and the 5 km Parcours de la Confluence. The longest race features 950 m of elevation gain and is part of the UTMB Index; the 11 km option includes 375 m of climbing, indicating the middle distance is not a simple flat run. Children's races are also available, with 450 m, 800 m, and 1600 m options.
The courses traverse the forest of La Larre and the Massif de la Sainte-Baume, within both the regional park and the Natura 2000 Montagne Sainte-Baume zone. Les Foulées du Loriot organizes the event, and the regional park and the National Forests Office verify the courses to minimize impact on protected natural sites. The series holds an exemplary label under the park's charter for eco-responsible sporting events. Aid stations are stocked almost entirely with organic goods from Biocoop Estella, and prizes consist of baskets from local producers and craftspeople. Park staff will also be present, offering runners the chance to learn about the landscape they are running through.