Public guided tour

Lötschberg Base Tunnel

Immerse yourself in the heart of the BLS infrastructure

On this guided tour, you will learn many exciting facts about the construction and operation of the Lötschberg Base Tunnel. With a length of 34.6 km, it is the third-largest tunnel in Europe after the Gotthard Base Tunnel and the Eurotunnel and a masterpiece of railroad engineering.

Travel in comfort by train to Frutigen. The Info Centre is located right across from the Frutigen train station.

Information on the Lötschberg construction tunnel and the expansion project

Programme

The tour begins at the BLS Info Centre in Frutigen. First, you’ll get an initial impression of the tunnel system and how it works in the exhibition. We then travel by minibus to the north portal and visit the intervention staircase. The journey continues to Mitholz and we immerse ourselves in the fascinating world of the Lötschberg Base Tunnel. This includes a tour of the Mitholz technical centre, the 1:1 scale test track and an exclusive look into the railway tunnel, where the trains rush closely in front of us at 200km/h.

Meeting point	Info Centre Lötschberg Base Tunnel Expansion, across from the Frutigen train station
Duration	3 hours (13.30–16.30)
Groupe size	6–24 persons
Equipment	Good footwear Helmets and vests will be provided
Footpath	1.5 km, good physical condition is required. Unfortunately, we cannot take wheelchairs into the tunnel. Temperature in the tunnel is approximately 18°C.
Language	The guided tour is held in German. During the summer holidays also in English (you can find the dates under “Book a guided tour”).

Book a guided tour Registration required

The guided tour of the Lötschberg Base Tunnel takes place on the Wednesday afternoons listed below and lasts 3 hours. The number of participants is limited. Reserve your place for the desired date and buy your ticket conveniently via our webshop.

Wednesday, 1 / 8 / 15 / 22 / 29 July 2026 English / German
Wednesday, 5 / 12 August 2026 English / German
Wednesday, 26 August 2026 German
Wednesday, 23 / 30 September 2026 German
Wednesday, 7 October 2026 German
Wednesday, 4 November 2026 German
Wednesday, 2 December 2026 German

Place reservation & advance booking

Registration is required. Children must be at least 12 years old and may only participate in the tour when accompanied by an adult. Advance booking in the webshop closes two days before the event. Short-term (less than two days) booking requests should be sent by e-mail.