A varied route across plateaus, through forests, and tranquil valleys. Along the way, you’ll pass several castles—most of them privately owned. In Blangy, located in the Bresle Valley, you can visit the 16th-century Château de Blangy, now serving as a cultural center. The château houses, among other things, a glass museum and a geology museum. On the way back, the route follows the Bresle Valley for a while.