Predjama Castle
The impregnable castle, perched high up in the middle of a vertical cliff, excites visitors' imagination and invites them to learn about its chivalric past.
Other Sites
A trip around the Postojna Cave can be an all-day adventure, brimming with surprising discoveries. Decide which of the numerous adventures inside the Postojna Cave and the surrounding area you would like to take part in. Let the exploration begin!
Vivarium Proteus
There is more life in the complete and eternal darkness than we might be willing to believe. Learn about the indigenous inhabitants of the Postojna Cave.
Butterflies of the World
The photo exhibition prepared by Slavko Polak has been supplemented with a colourful exhibition featuring a collection of 7,000 butterflies from all over the world.