This area showcases the magnificent underground world of the Karst region. Postojna Cave is the world’s largest show cave, offering a unique experience that begins with a spectacular ride on an underground train. Just a few kilometers away is Predjama Castle, a dramatic medieval fortress built directly into the mouth of a 123-meter-high cliff.
Things to Do & See
Postojna Cave
The most visited tourist cave in Europe, famous for the unique electric train that takes you deep into the 24km system to see the spectacular halls, the 16-meter ‘Skyscraper’ stalagmite, and the crystal-white ‘Brilliant’ stalagmite. (Link)
Predjama Castle
The largest cave castle in the world, built directly into a towering, 123-meter-high cliff face. This dramatic Renaissance castle is famous for the legend of the rebellious knight Erazem of Predjama. (Link)




