Head to Le Ninglinspo and spend an afternoon wandering along the water's edge. There's something about being by a river that makes you feel calm and peaceful.
This Aywaille flowing body of water is a good spot to kick off your day of sightseeing. There's loads to experience in the area, such as Thermes de Spa, RAVeL Spa - Francorchamps - Stavelot, and Les Grottes de Remouchamps. Wander around at your leisure at Le Ninglinspo before hitting up these other fine sights.