Postojna Caves are the second largest underground cave system in the world. Unique for its cave train which isn't to be found nowhere in the world. Predjama Castle is situated close to the caves and it is one of the most spectacular medieval castles and the biggest cave castle in the world. We will start the excursion from hotel in Portorož. The road to Postojna takes about 50 min of ride. First we will visit the Postojna caves. Postojna Caves are the second largest underground cave system in the world. Unique for its cave train which isn't to be found nowhere in the world. Predjama Castle is situated close to the caves and it is one of the most spectacular medieval castles and the biggest cave castle in the world. We will start the excursion from hotel in Portorož. The road to Postojna takes about 50 min of ride. First we will visit the Postojna caves. The visit takes about 90 minutes. Some free time for souvenirs or drinks, than we will proceed with the transfer to the Predjama castle (about 10 min) and with the visit of it. After the visit of the castle we will take the road back to the hotel in Portorož. Explore the mysterious Karst underground in Postojna Cave, the second largest underground cave system in the world. Unique for its cave train which isn't to be found nowhere in the world. Visit the biggest cave castle in the world Predjama Castle, one of the most spectacular medieval castles.