Discover Finland’s Largest Observatory

Join us for a guided tour at Finland’s largest observatory, where science and history come alive. Highlights include:

- Finland’s largest optical telescope

- A unique optical cave tunnel

- Insights into modern astronomy and Finland’s astronomical heritage

The tour also explores geodesy and optics, including a visit to Opteon Ltd’s premises — the company that polished the world’s largest mirror ever sent to space and the world’s sharpest large-size mirror, advancing global astronomy with cutting-edge optical technology.

You'll also learn about two renowned Finnish astronomers: Yrjö Väisälä and Liisi Oterma.

Each tour is customized to suit your group, whether you're visiting with pre-schoolers or seasoned astronomy professionals.

Duration: 1 hour 15 minutes (flexible upon request)

Pricing: €130 per group (up to 40 participants)