On foot
Most of the areas in city center are easily accessible on foot, and walking provides an interesting perspective on the city itself. The trip from the train station at Guillemins to the city center requires a bit more timeL about 30 min.
By bike
Travelling by bike in the city center is easy, but the hillsides can be a bit steep between 5 and 15%. Reaching the higher neighborhoods will require a bit of training and a multi-speed bike!
Cycling paths are regularly added and improved, though the main roads remain a bit dangerous. Most one-way streets can be travelled in the opposite direction by cyclists. A map of cycling paths is available at the tourist information office. In addition, there's a "Ravel" a path for walkers and cyclists along the right bank of the river Meuse.
La Maison des Cyclistes (http://www.provelo.be)