Postojna Cave in Ljubljana — FAQ

What is the Postojna Cave?
The Postojna Cave is one of the world’s most famous cave systems, near Ljubljana, where a cave train carries you deep into vast chambers of stalactites and stalagmites, home to the rare “baby dragon” olm.
What is Predjama Castle?
Predjama Castle is a dramatic Renaissance fortress built into the mouth of a cliff cave near the Postojna Cave, the largest cave castle in the world and a remarkable sight, often combined with the cave on a day trip.
How far is Postojna from Ljubljana?
The Postojna Cave is about 45 minutes from Ljubljana; tours include transport and tickets for the cave train and often the nearby Predjama Castle, making an easy and spectacular day trip.

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