Namur is located 60 km south-east of Belgium's capital city, Brussels. It is easily accessible by road (the E411 highway from Brussels), train or boat (the Meuse comes from France and the Samber flow through Namur where they actually meet).
Namur is a substantial city and might be too large to discover on foot. The layout of the city is complex and navigation is not easy.
Cycling does not appear to be very popular with the locals, perhaps due to the number of cobbled streets. On the other hand, many one-way streets are "except bicycles", so cyclists enjoy special privileges. Recently, the city has been trying to promote the usage of bikes thanks to the "li bia velo" program ( meaning "the nice bike" in Walloon). The program allows people to rent a bike with an automatic system. See http://en.libiavelo.be for more informations.
The city is small and have some pedestrian streets so parking can be an issue. The local bus company in Wallonia, the TEC provide "P+R" buses between two car parks in the outer city and the center of the city. The line number is 51 and the two car parks are named "P+R Saint-Nicolas" and "P+R Namur Expo". If you can speak french, you can check it out on the website of the TEC.
Hire a bicycle and cycle up and through the Citadel. Most of the access road is mostly wide and uninteresting, so if you want to walk, make sure to go by the stairs coming from the gronon (the car park between the Meuse and Sambre rivers next to where they join together). There is also a network of mountain bike itineraries beginning and ending in Namur, but the signage, which was very good at the beginning, with large coloured arrows painted on the road, suddenly vanished without explanation.
A tour company in nearby Dinant (Les Kayaks Bleus, www.lessekayaks.be) organises river kayaking trips. It would probably be possible to paddle downstream all the way to Holland and the North Sea.
One weekend per year, at the end of September or the beginning of October, a big fair called "Fêtes de Wallonies" takes place. It involves drinking a lot of alcohol, mainly the a local type called "Peket". During the afternoon, many concerts, some in Walloons, are given. Avoid staying too late as most activities ends after the evening and then streets consist mostly of a lot of drunk people.
There are public swimming pools in Salzinnes and Jambes.
Namur is often said to be an "open sky" shopping mall. Major shopping streets stretch from the Namur train station to Rue de Fer and Rue de l'Ange where you will find normal fashion outlets like H&M, Newlook,Zara, Kim Pie,Cool Cats, O' Appels, Charles Vogele Switzerland, Esprit, JBC, C& A, Women's secret, ICL Paris IV, Di, Camaieu among others.
The inner city supermarkets are one Match and one (smaller) Spar. Other supermarkets are Carrefour and COlruyt in Jambes and another Colruyt and Delhaize in Salzinnes among others.
Namur might also be your gateway to the Ardennes and Luxembourg. There is an international train going to Basel, Switzerland and from there to Zurich and Chur.