In June, a 10 km format is organised, in a setting steeped in history with the Foulée Royale de Saint-Germain-en-Laye From the long Le Nôtre terrace overlooking the Seine and Paris, through the national forest and flower gardens, to the foot of the château, former residence of the kings of France, after 2 turns. Bonus: a short 2km version for younger visitors.