Postojna Cave and Predjama Castle

Two large stalactites in a cave, next to a walking path.

Embark on an unforgettable journey into the heart of the Slovenian Karst, where the unimaginable power of nature meets bold medieval architecture.

On this excursion, you will visit two world-class attractions that have become symbols of Slovenian natural and cultural heritage, enchanting visitors from all over the globe for centuries.

Postojna Cave: The Kingdom of Stalactites and the Cave Train

Our journey begins at Postojna Cave, where a legendary cave train will take us through one of the world's most famous karst caves. This natural phenomenon, formed over the last two million years, offers views of magnificent karst features such as vast galleries, mysterious tunnels, and natural masterpieces in the form of stalactites, stalagmites, and cave pearls. While exploring the underground chambers, you might even get a chance to see the olm (proteus), one of the world's most impressive animals, which lives exclusively in this part of Europe.

Predjama Castle: The Largest Cave Castle in the World

We continue to a unique architectural marvel, Predjama Castle, which has reigned high in a 123-meter vertical cliff for over 800 years. The castle is officially listed in the Guinness World Records as the largest cave castle in the world. Once the home of Erazem of Predjama, also known as the Slovenian Robin Hood, it will transport you back to medieval times with its extraordinary location and captivating story.

Book your experience and discover why Postojna Cave and Predjama Castle are on the bucket list of travelers from all over the world!