Our Guided Tours will immerse you in the production of electricity from hydropower. Here at the easternmost end of the Bernese Oberland, at the very back of the Hasli Valley, electricity is produced for around one million households. On our Guided Tours, you will visit the underground facilities of Kraftwerke Oberhasli AG (KWO) and learn lots of interesting facts about nature and technology. Plan your next trip to the Grimselwelt and you will experience Wasserkraft up close.
Innertkirchen:
Experience Wasserkraft
Bookable all year round (Mon-Sun)
Electricity production is at its most impressive at the foot of the Grimselwelt. Here in the underground Innertkirchen 1 Power plant, the huge masses of water from the Grimsel are collected and converted into electrical energy.
Adults CHF 19.-
Children 6-15 years CHF 12.-
Free for Swiss school classes
Duration 1 h 30 min
Suitable for groups and schools of between 10 and 25 people.
Handeck:
Wasserkraft Pioniere
Tour of Handeck 1, 2, 2A Power plants and crystal exhibition.
Adults CHF 29.-
Children 6-15 years CHF 19.-
For Swiss school classes CHF 200.-
Duration 1 h 30 min
Suitable for groups, individuals and schools of up to 20 people.
Day experience:
Kraftwerk, Schlucht and Wasserfall
9. Mai – 4. Oktober 2026
The water of the Grimsel region is turbined one last time at the imposing Innertkirchen 1 Power Plant. You then hike along the river and through the Aare Gorge before enjoying a trip to the legendary Reichenbach Falls.
Adults CHF 44.-
Children 6-15 years CHF 28.-
Duration 7 h
Suitable for groups and schools of between 10 and 25 people.
Grimsel Hospiz:
Grimsel Undergrund
Guided Tours from the Grimsel Hospiz deep below the Grimselsee to the Grimsel 2 Power plant and the breathtaking Gerstenegg Crystal cave.
Adults CHF 42.-
Children 6-15 years CHF 29.-
Duration 2 h
Suitable for individuals and small groups of up to 14 people.
Grimsel Hospiz:
Staumauern Spitallamm
Guided Tours of the old and new dam walls with impressive perspectives and lots of interesting information about the construction and water use of Grimselsee.
Adults CHF 25.-
Children 6-15 years CHF 18.-
Duration 1 h 30 min
Suitable for individuals and small groups of up to 15 people.
Tagestour:
Grimselstrom
26. Juni – 4. Oktober 2026
Day trip to the Kessiturm Surge tanks, the Staumauern Spitallamm and deep underground to the Grimsel 2 pumped storage plant, as well as a visit to the Gerstenegg Crystal cave, the only one of its kind in the world.
Per person CHF 110.-
Duration 6 h 30 min
Suitable for small groups of up to 15 people.
Innertkirchen:
Experience Wasserkraft
Bookable all year round (Mon-Sun)
Electricity production is at its most impressive at the foot of the Grimselwelt. Here in the underground Innertkirchen 1 Power plant, the huge masses of water from the Grimsel are collected and converted into electrical energy.
Adults CHF 19.-
Children 6-15 years CHF 12.-
Free for Swiss school classes
Duration 1 h 30 min
Suitable for groups and schools of between 10 and 25 people.
Winterführung:
Wasserkraft Pioniere
October 20, 2025 – April 23, 2026 (Mon-Fri)
Transportation from Innertkirchen followed by a Guided Tours of the Handeck 1, 2, 2A Power plants and a visit to the crystal exhibition. Lunch included (hearty soup with sausage).
Adults CHF 49.-
Children 6-15 years CHF 45.-
Duration 3 h
Suitable for groups of up to 20 people.
Winterführung:
Grimsel Undergrund
20. Oktober 2025 – 23. April 2026
Transport from Innertkirchen followed by a Guided Tours of the Grimsel 2 Power plant and the breathtaking Gerstenegg Crystal cave.
Adults CHF 75.-
Children 6-15 years CHF 65.-
Duration 4 h
Suitable for individuals and small groups of up to 15 people.
Overview map of the Power plants
Hotels
Would you also like to organize an aperitif, lunch or dinner? Or would you like to stay overnight in the Grimselwelt after the Guided Tours? Contact the Hotels on the Grimsel directly.
