La Foetadenn is a November trail running and walking event held in Saint-Brieuc, located in the Côtes-d'Armor department of Brittany. The primary event is a 22 km trail race featuring over 750 m of elevation gain. Additionally, 13 km and 7 km discovery trails are offered for participants seeking shorter running distances.
The event also features several walking routes, ranging from a 5 km walk in the Robien neighborhood to longer options of 10 km, 11 km, 13 km, and 18 km. A past event attracted approximately 650 participants, indicating it is a well-attended local outdoor event with challenging hills on the longer trail races and more moderate options for walkers.