Mysterious tunnels of Predjama Castle

Mysterious tunnels of Predjama Castle Photo: Miha Krivic /

The Renaissance Predjama Castle is one of major tourist attractions in Slovenia and perhaps the most famous cave castle in the world. It is located only 9 km from the Postojna Cave, in south-central Slovenia, in the historical region of Inner Carniola. The castle was built in 13th century in a 123-meter-high limestone cliff, in the entrance of the Predjama Cave, just above the settlement. This extraordinary fortress made the cave well known.

The Predjama Cave is located behind the castle and it is actually called Erazmova Jama (cave), after the famous and notorious knight Erazem of Predjama who lived in the castle during a siege in the 15th century offering him a refuge. Mysterious underground tunnels connect the castle with the cave directly beneath.

A vertical natural shaft which leads out of the original castle, was used in the middle ages as a secret entrance for escape in case of a siege of the castle. It enabled to secretly supply the castle with food. The exit was located at the top of the cliff, 25 meters away from the cliff's edge. Today it is filled with rocks.

During World War II, in the castle was printing house and the court. Today, the castle houses an interesting look at the dungeon, living spaces, a collection of weapons and oil paintings, the chapel. The special is still Erazem's Passage, which was hidden, and through which he supplied the castle with food and drink.

Escape in the mysterious tunnels and dark dungeons of the Predjama Castle and its cave. It is not something you see often! Great experience for whole family, especially for kids!

If you are interested in exploring Predjama Castle with a professional guide, please send us your inquiry to

Interesting Facts

The Predjama Castle is listed among the Guinness World Records as the largest cave castle in the world. In August each year in front of the castle is organized the Erazem’s Knight Tournament, in which knights from all over the world show their fighting abilities.

  • Location: 9 km from the Postojna Cave
  • Most famous cave castle in the world
  • Major tourist attraction in Slovenia
  • Entrance perched high up in the 123-metre high cliff
  • Most famous resident - knight Erazem of Predjama
  • Erazem's Hidden Passage
  • Free shuttle bus Postojna Cave – Predjama Castle in July and August
  • Combination ticket for visiting both caves and the castle
  • Duration of the tour: 2h for both caves and 1h for the castle
  • Audio guides in 17 deifferent languages
  • Excellent exhibits inside the castle

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