Grimsel Hospiz: Grimsel Undergrund

Ride on the Hospizbahn, visit the Grimsel 2 hydroelectric power station and visit the unique Gerstenegg Crystal cave.

With the small Hospizbahn we float over the Staumauern Spitallamm down into the underground. After a few meters we reach the Grimsel 1 Power plant and from there our tunnel bus takes us to the Grimsel 2 pumped storage plant, which lies 500 meters below the Oberaarsee and 100 meters below the Grimselsee deep in the Grimsel granite.

Back through the tunnel, we reach the treasure trove of the Grimselwelt – the Gerstenegg Crystal cave. This Crystal cave was discovered in 1974 during tunnel construction and was placed under protection by the Bernese cantonal government shortly afterwards.

Finally, the Hospizbahn takes you back up from underground to the Hospiz viewing platform.

Information about the excursion

Data

6. Juni – 25. Oktober 2026

Duration

2h

Prices

Adults CHF 42.-
Children 6-15 years CHF 29.-

Exclusive tour CHF 630 (max. 15 people)

(Prices subject to change)

Number of persons

A maximum of 15 people can take part in a Guided Tours.

Meeting point and arrival

Guided Tours start at the Grimsel Hospiz Visitor Center.

The Hospiz can be reached by car and by post bus.

Postbus stop Grimsel Hospiz

Arrival by car

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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.