Postojna cave & Predjama castle in Sigismundi Luxury Adventures A Slovenian Karst classic awaits! Explore two of Slovenia's most stunning treasures: Postojna Cave, Europe’s most visited cave, and Predjama Castle, the world’s largest cave castle. Begin with Postojna Cave, a 24 km (15-mile) underground marvel... Free Cancellation From $892.35
Private Ljubljana City Tour from Slovenian coast Ljubljana is the capital city of Slovenia and a very nice small green metropolis. Its historical city centre, the river Ljubljanica, the castle above the city, the open market etc. are only the few of the major attractions to explore. Free Cancellation From $268.76
