Les Foulées Nocturnes de la St-Patrick is a night trail and hiking event held at the Saint-Patrick farm in Clairmarais, Pas-de-Calais, northern France. Now in its fifth edition, this event offers solo and pair entries across various routes suitable for different skill levels. Distances range from a short 6 km to longer trail options around 21 km, with some listings also including a 27 km course.
The courses are situated near the Clairmarais ponds nature reserve, emphasizing a night run or walk through the forest over achieving a fast road time. The event attracts a substantial local following, with over 2,500 participants in recent editions and one earlier event drawing more than 3,500. The Saint Patrick theme is integrated into the evening's festivities; following the races and hikes, the farm hosts concerts, food, and beverages. On-site services include timing, refreshments, restrooms, and bag storage.