Postojna Cave and Predjama Castle

A person inside a cave with a lot of stalactites.

Discover the magnificent realm of Postojna Cave, where a legendary train whisks you through subterranean halls millions of years in the making. Just a stone's throw away, the unforgettable Predjama Castle awaits—a world wonder that has perched defiantly within a vertical cliff for centuries.

An Unforgettable Journey through Karst Jewels: From Subterranean Wonders to an Invincible Fortress

Immerse yourself in the marvels of Slovenian nature and explore two world-renowned landmarks that are guaranteed to take your breath away. Your adventure begins in the depths of Postojna Cave, where the legendary cave train whisks you into the heart of a mesmerizing underground realm. As you journey through the cave, you will marvel at magnificent halls and towering, ancient formations that represent only a fraction of nature’s extraordinary artistry.

The cave’s interior will captivate you with its vibrant natural palette, while a truly unique encounter awaits in the Vivarium. There, you will come face-to-face with the olm—the mysterious creature once legendary for being a "baby dragon."

Just a stone’s throw away, the dramatic silhouette of Predjama Castle unfolds—the world's largest cave castle, perched defiantly in the middle of a 123-meter-high vertical cliff. This architectural masterpiece has stood the test of time for over eight centuries, guarding the legends of the fearless knight Erasmus within its walls. Explore the medieval chambers and peer into the secret tunnels that once provided a hidden passage between the fortress and the unconquerable world beneath.

Step into a world where the boundary between reality and folklore blurs. Discover why these global wonders have captivated travelers from every corner of the world for centuries.

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