Leave Ljubljana behind and join a knowledgeable guide who will lead you on an unforgettable journey to the stunning Postojna Caves and the historic Predjama Castle built into the cave. Explore the easily accessible underground cave network by electric train on the tracks, followed by a guided walk through spectacular caverns filled with fascinating rock formations. At Predjama Castle, enjoy a detailed historical tour with an informative audio guide, bringing the castle’s stories and legends vividly to life.