On Saturday, March 14, 2026, the Yvelines region invites you to a one-of-a-kind trail event: the Four Bell Towers Race. Covering 17 kilometers, this route offers the perfect blend of athletic challenge and heritage discovery, weaving through the historic churches of Vélizy-Villacoublay, Jouy-en-Josas, Buc, and Les Loges-en-Josas.