The Ultimate Slovenian Adventure: Postojna Cave & Predjama Castle

Experience the best of Slovenia in a single day from Venice. Your adventure starts deep underground in the world-famous Postojna Cave, where a train ride takes you through spectacular limestone galleries.

The journey continues to the legendary Predjama Castle, a 13th-century fortress built directly into a 123-meter high cliff. Discover the secret tunnels and history of the world’s largest cave castle in this unique historical and natural excursion.