Postojna Cave: Famous karst cave system
Postojna Cave (Postojnska jama) is one of the world’s most spectacular and visited cave systems, featuring breathtaking stalactites, stalagmites, underground halls, and a unique cave train. Spanning 24 km, it is the largest cave system in Slovenia, offering a once-in-a-lifetime underground adventure.
Visitor Fees
- Entrance fee required (includes a guided tour and cave train ride).
- Combo tickets available for Predjama Castle + Postojna Cave.
- Discounts for children, students, and groups.
Transportation
- By Car – Located 50 km from Ljubljana, with paid parking available.
- By Bus – Regular buses from Ljubljana, Bled, and Koper.
- By Train – The nearest station is Postojna, about 1.5 km from the cave entrance.
Things to Do
- Ride the Famous Cave Train – A 3.7 km underground train ride through illuminated rock formations.
- Walk Through Stunning Chambers – Explore huge halls, limestone formations, and underground rivers.
- See the ‘Brilliant’ Stalagmite – A 5-meter-tall white limestone formation, the cave’s symbol.
- Visit the Vivarium – Discover proteus (Olm), the rare "baby dragon" amphibian.
- Combine with Predjama Castle – Visit the world’s largest cave castle, just 9 km away.
Why People Enjoy Visiting
Visitors love Postojna Cave for its jaw-dropping underground beauty, thrilling train ride, and fascinating rock formations. It is a must-see wonder for adventure seekers, families, and nature lovers.
How Old is Postojna Cave?
- Formed over millions of years by the Pivka River.
- Discovered in 1818 and opened to tourists in 1819, making it over 200 years a popular attraction.
List of Activities
- Guided tours of the cave system
- Riding the underground train
- Exploring giant limestone formations
- Observing rare cave wildlife
- Visiting the nearby Predjama Castle
Additional Nearby Attractions
- Predjama Castle – The world’s largest cave castle, built into a cliff.
- Škocjan Caves – A UNESCO-listed underground canyon and cave system.
- Pivka River Springs – A scenic nature area near the cave.
With its awe-inspiring rock formations, thrilling underground train, and deep history, Postojna Cave is one of Europe’s most fascinating natural wonders.