Departing from Crépy, a commune which had the sad privilege of hosting the “Grosse Bertha” in 1918, this great circuit takes us to discover the sandstone churches of this part of the Laonnois: Cerny, Bucy, Molinchart. After a detour in the woods of Sart-l’Abbé, the ascent of Mount Kennedy provides some beautiful escapes to the surrounding area.