• Guided tour including bottled water and safety helmet and vest hire.
  • On request: Drink and snack in the BLS visitor centre.
  • Tour can be given in German or French.

Booking request


A masterpiece of railway technology: here you can take an exclusive peek inside the mountain. 

A minibus will take you from Frutigen into the tunnel system, where you will visit the Mitholz train-control centre. A special window in the tunnel wall allows you to see what it looks like when a train rushes past. The test track – built to a 1:1 scale – and the 320-metre-wide emergency intervention staircase at the north portal are also impressive sights.

Further content

SBB Contact Center

For timetable and ticket information, contact 0848 44 66 88Link opens in new window.

CHF 0.08/min.

(daily 24 hours)