Postojna Cave and Predjama Castle: Train and Guide

The Postojna Cave and Predjama Castle tour from Trieste is a six-hour day excursion into Slovenia, led by a guide and with transport shared with other travellers.

First comes Postojna Cave, one of the largest karst monuments in the world. An electric train carries you through a web of tunnels, passages, galleries and halls, and the cave is where you can see its best-known inhabitant, the olm or proteus, up close. Easy access is one reason it has had more than 36 million visitors over some 200 years.

Then comes Predjama Castle, not far from the cave, which has stood halfway up a vertical 123-metre cliff for over 800 years. It is the only preserved cave castle in Europe, and the visit shows how medieval builders used the cave mouth as a shelter. The legend of the robber baron Erazem, who held out against a siege in the 15th century for more than a year until a servant betrayed him, comes with the walls.

Both entrances, transport, the guide and insurance are included; food and drinks are not. The tour runs in English, Italian or German, and the cave and castle visits use the language you booked. A final confirmation with pickup time and place arrives the day before.