Observatory tour

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)