Welcome to the Grimselwelt

The world of hydropower

Experience spectacular mountain railways, explore emerald-green reservoirs, let yourself be guided through our underground power stations and relax in our charming mountain hotels.

Here, every excursion becomes an unforgettable experience!

News
from 28 June

Oberaarbahn

With the Oberaarbahn to the source of the Aare. Enjoy a unique alpine low-level flight on this 30-minute gondola ride from the historic Alpine hotel Grimsel Hospiz to Lake Oberaar.

from 28 June

Berghaus Oberaar

In the Oberaar region, the sun makes an appearance every single day. The beautiful sun terrace, with its unique view over Lake Oberaar and the magnificent mountains, invites you to linger and relax.

from 28 June

Tagestour «Strom der Oberaar»

On this day tour, follow the flow of the Oberaar from the dam wall down to the depths beneath Lake Grimsel, into the Grimsel 2 power plant. The view across the Spitallamm dam walls is equally awe-inspiring.

100 years KWO
«At the Pulse of Hydropower»

KWO is celebrating its 100th anniversary – and cordially invites you to join in the festivities. You can find all the information about the planned activities and celebrations here:

I need the power of nature
A film with Switzerland Tourism