Take the Thalys from Brussels to Paris to start your trip. From Paris, you will have several options for traveling to Brig.
Catch the Lyrus in Paris. On certain ski weekends, the TGV service will extend all the way to Brig. At other times, you will need to transfer to InterRegional trains in Lausanne. The trip from Lausanne to Brig is about two hours.
Catch an overnight to Basel. Arrive in Basel in time to eat breakfast and catch an InterCity train for a three-hour journey to Brig.
Consider booking through Bern. The TGV stops in Bern and an InterCity train can take you to Brig, which is a major transfer point for this route.
Use the Web to your advantage. The easiest way to book travel on the TGV's Thalys and Lyria is online. Rail Europe allows you to book form Brussels to Switzerland, all the way to Brig if you desire. To book train travel from Brussels to Brig, call Rail Europe at (888) 382-RAIL or visit the link below.
Find the best fare with a Swiss Transfer Ticket. The ticket offers round-trip passage from your first point in Switzerland--Basel, Bern or Lausanne usually--to any station in Switzerland. This will be your best bet for reaching Brig.
Wait to buy tickets for the last leg of your train travel. It is easiest to book tickets within Switzerland to Brig at the station. You will have plenty of departures to choose from for InterRegional and InterCity trains.
Know that the center of town is the train station. One of the largest buildings in town, it stands on the Northern edge of Brig.
Climb the spiral staircase. Adding the mystery of Brig is the spiral staircase at the train station that leads to the tourist office. You can check your e-mail for free here after you gather information on the town.
Head over to the cobbled central square, which is the focus of the Old Town district. You'll pass the main shopping area of Brig on your way from the train station.