Postojna Cave & Škocjan Caves

Beneath Slovenia’s beautiful countryside lies an extraordinary underground world of vast caverns, dramatic rock formations and underground rivers. Two of the country’s most impressive natural attractions are Postojna Cave and the Škocjan Caves, each offering a unique glimpse into this fascinating landscape.

Why Visit?

These caves are among the finest in Europe and provide an unforgettable experience for visitors of all ages. Whether you’re travelling with family or exploring Slovenia as part of a wider adventure, they’re a fantastic way to discover a completely different side of the country.

What to See & Do

• Ride the famous underground electric train through Postojna Cave, one of the world’s largest show caves.
• Admire spectacular stalactites, stalagmites and enormous underground chambers.
• Look out for the unusual olm, often called the “human fish”, a rare amphibian found only in underground cave systems.
• Explore the breathtaking Škocjan Caves, a UNESCO World Heritage Site renowned for its immense underground canyon and roaring river.
• Walk across dramatic bridges suspended high above the subterranean gorge.

How Long Should You Stay?

Both caves can be visited on a day trip, with around half a day needed for each. Many visitors combine Postojna Cave with nearby Predjama Castle or include the caves while travelling between Ljubljana and the Slovenian coast.