The Grimselwelt power plants are power plants you can touch. A world where you can learn everything you ever wanted to know about electricity. It takes technology to generate electricity from hydropower. Life pulsates deep inside the mountain, where the turbines of Kraftwerke Oberhasli run at full speed year in, year out. Experience the Grimsel underground up close with the Grimsel 2 Power plant and be enchanted by the Crystal cave.
Exclusive dates for individual guests, bookable for one person or more
We offer the Winterführung: Grimsel Undergrund on the following dates for individual guests of one person or more:
Monday, April 13, 2026
The dates can be booked in the online store under the heading “Grimsel Undergrund – Winter”.
Information about the excursion
Data
Guided Tours will not take place from December 17, 2026 – January 4, 2027.
Duration
9:00 a.m. – 12:45 p.m.
Prices
Adults CHF 75.-
Children 6-15 years CHF 65.-
Exclusive tour available on request, CHF 1,050.-
(max. 14 people)
Price incl. transportation from Innertkirchen
(Prices subject to change)
Number of persons
A maximum of 14 people can take part in a Guided Tours.
Further information
Prerequisites
The tour is largely on foot and partly underground. As there are some stairs to climb, both up and down, a good physical condition is required.
Guided Tours are not wheelchair accessible and not suitable for baby carriages. Animals are not allowed.
Equipment
An audio system and, where necessary, a safety vest and helmet will be provided. We recommend sturdy, sure-footed shoes and a warm jacket. The temperatures in our facilities range between a cool 14 and 18 degrees.
Minimum age
The minimum age is 10 years. Children aged 6 and over can take part if accompanied by a parent or guardian and under their responsibility.
Language
Guided Tours are in German. English on request.
