Follow the main road in the direction of Namur. Pass on the bridge over the railways and turn to the right in the direction of the station. Then take the left lane and go under a short tunnel and just after turn left (to "Facultes") between the river Sambre and a park. Take the first left and then the first right. After a few meters you will find on the left the entrance of the parking of the Department of Computer Science.
Follow the main road in the direction of Namur. After about 3 km, you will see a rail bridge. Turn right there in the direction of "Gare" (station in French). Use the right lane and go under a bridge (actually the bridge mentioned for the exit 13). Pass the station and then follow the way indicated above.
Follow the main road to the direction of Namur. After about 5 km, you will pass on a bridge. At the second red lights, turn right and then take the first to the left. After a few meters you will find on the left the entrance of the parking of the Department of Computer Science.
Namur is on the line from Brussels to Luxembourg as well as on the line from Liege to Mons. Several direct connections also exist from Germany (Aachen and Koln), from France (Paris), from The Netherlands (Amsterdam, The Hage) as well as, thanks to the Eurostar from Great-Britain (London). Tables may be consulted here.
Once at Namur Station, go out from the main exit, turn right and then straight away for a few hundred meters. Turn left just before the tunnel; cross the "rue de Bruxelles" at the traffic lights and go down in "Rempart de la Vierge", along the park. An entrance on your left is marked "Faculte de Droit"; enter it, cross the parking, go down the street a bit, you will find the pedestrian entrance of the Department of Computer Science.
The closest airport to Namur and the most convenient one is Brussels, actually located in Zaventem. You may also use the aiport of Amsterdam, Paris, Frankfurt, and London which have good train connections to Brussels
If you come from Brussels airport, take a train to the center of Brussels. Brussels has three main stations called "Bruxelles Nord", "Bruxelles Central" and "Bruxelles Midi". All of them are connected by train and most trains go through the three stations. A notable exception is the train from the airport which only stops in "Bruxelles Nord" and "Bruxelles Central". The easiest solution for you is to exit at the terminal station which is "Bruxelles Central". Take then a correspandance to Namur. There are 2 trains per hour with a schedule repeating hourly until 22:XX. The time of the first trains are:
Once at Namur Station, go out from the main exit, turn right and then straight away for a few hundred meters. Turn left just before the tunnel; cross the "rue de Bruxelles" at the traffic lights and go down in "Rempart de la Vierge", along the park. An entrance on your left is marked "Faculte de Droit"; enter it, cross the parking, go down the street a bit, you will find the pedestrian entrance of the Department of Computer Science.