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How and where does Nagra carry out research on the disposal of radioactive waste? We would be pleased to show you.

Come and look over our shoulder

Guided tours of the Mont Terri Rock Laboratory

As the primary research partner, we will gladly guide you through the Mont Terri Rock Laboratory, which is operated by swisstopo, the Swiss Federal Office of Topography. Here, research is being conducted directly in the Opalinus Clay. This is the rock that will eventually host the deep geological repository.

Register for a free guided tour

The Mont Terri Rock Laboratory has its own website.

To the website

Your Contact

Register for a free guided tour of the Mont Terri Rock Laboratory

What's new at Nagra?
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From June to October

Tours of the Grimsel Test Site


Research at the Grimsel Test Site strengthens Switzerland’s ability to construct a safe deep geological repository. This underground laboratory provides ideal boundary conditions for a variety of experiments. These can even be carried out on a 1:1 scale. Join us inside the mountain, and we will show you what exactly we are researching at the Grimsel Test Site.

A day open to the public will be held on Saturday 22 June 2024. Further information will follow at a later date.

Would you like to learn more about the experiments conducted at the Grimsel Test Site?

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Your Contact

Andrea Wettstein - De Marco
+41 56 437 11 11 andrea.wettstein@nagra.ch
More information from our Knowledge Centre
Mont Terri Rock Laboratory

The Mont Terri Rock Laboratory is an underground research laboratory in Canton Jura where 22 partners from 9 nations work together. As the primary research partner, we will gladly guide you through the rock laboratory, which is managed by swisstopo, the Swiss Federal Office of Topography.

Grimsel Test Site

Deep inside the rock of the Grimsel mountain area, over 20 organisations from 12 countries conduct experiments – together with Nagra. Join us on an underground tour. We will gladly show you what is being researched in our rock laboratory.

Offers for schools


Just like with climate change, scientific data alone are not sufficient to solve the problem of the disposal of radioactive waste. But who wants to have radioactive waste in their own backyard? This is an explosive question . We would be pleased to bring our workshop into your classroom and are available for discussion of this issue.

... or take your school class to the Mont Terri Rock Laboratory for a free tour. Please contact us well in advance to secure a booking.

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