A very varied but also tiring walk between two rivers, the Ninglinspo and the Chefna. A regular contact with rocks and water characterizes this circuit. The route along the Ninglinspo, over rocks and bridges, is a real adventure. There is constant change of side, so that one always gets new impressions of the landscape formed by erosion. Numerous small waterfalls throw themselves in small reservoirs that sometimes carry names like the 'Bath of Diana'. At the secluded hamlet Chefna / Ville-au-Bois you can discover highland cattle and Ardennes draft horses along the way with a bit of luck. From Chefna / Ville-au-Bois it goes along the Chefna-brook back to the valley of the Amblève. Shortly before the Chefna enters the Amblève, you arrive at the village of Quarreux. The road then passes by the 'Fonds de Quarreux', a particularly wild part of the Ambève. The bed of the river here is dotted with large and erratic blocks of quartzite where the water breaks and offers a beautiful spectacle.