Postojna Cave & Predjama Castle tour from Slovenian Coast

The cave train runs nowhere else in the world.

A six-hour private tour from the Slovenian coast to Postojna Cave and Predjama Castle, with entrance fees and a live guide included. You ride the unique cave train through the second-largest underground cave system, then explore the world's largest cave castle. Pickup from Portoroz is arranged. Free time for lunch and shopping falls between the two sites.

Step-by-step itinerary

Stops and time at each

1. Postojna Cave3h · entry included
2. Predjama Castle2h · entry included

Visit Postojna Caves and Predjama Castle

• Start excursion from Portoroz
• Visit Postojna Caves
• Free time for lunch and shopping
• Visit Predjama Castle
• Return to Portoroz

The Experience

The tour starts in Portoroz and heads inland to Postojna Cave, where the cave train, found nowhere else on earth, carries you through passages carved over millennia. The system ranks as the second largest underground cave network in the world. After the cave, you have free time to eat and browse the shops nearby before moving on to Predjama Castle.

Predjama Castle sits close to the caves and holds the title of the world's largest cave castle, built into a cliff face and carved partly into the rock itself. The medieval structure is one of the most striking castles in Europe, and the tour includes entry to both sites. A live guide in English, Spanish, Italian, French or another language leads the group through both attractions, and the route ends with a return to Portoroz.

What’s included

• Entrance fees to both Postojna Cave and Predjama Castle.
• cave train ride.
• live guide in your chosen language.
• pickup and return from Portoroz.

Days and timesDaily · 9 departure times, from 07:00 to 11:00

AgesAges 12+ · 3 to 11 years · Under 3 — Free

Meeting point and pickupHotel pickup2 pickup points to choose from.

Cancellation and refundsFree cancellation up to 24h before the start. After that, no refund.It may be canceled due to bad weather. If that happens, you're offered another date or a refund.

Prices and times updated today

Good to know

Easy physical levelInfant seats availablePublic transport nearby

Operated by Palma Travel DMC

Is this one for you?The tour departs from Portoroz, so if you're staying on the Slovenian coast without a car, pickup and the fixed route settle the logistics. You don't arrange transport between the two sites or navigate to either one yourself.

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Top questions

What languages is the guide in?

Live guide in English, Spanish, French, German and Italian.

Can children come?

3 to 11 years; under 3, free.

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24h before the start.

What is the cave train at Postojna, and how does it work?

The cave train is a unique electric railway that runs through Postojna Cave and exists nowhere else in the world. It carries visitors through the underground passages, letting you cover the cave system without walking the entire distance on foot.

How much time do I get to explore each site?

The tour spans six hours total from Portoroz. Time at Postojna Cave includes the cave train ride, and after that you have free time for lunch and shopping before heading to Predjama Castle for the second part of the day.

Is Predjama Castle really built inside a cave?

Predjama Castle is the world's largest cave castle, built into a cliff face with portions carved directly into the rock. It's a medieval fortress that merges architecture with the natural cave structure, making it unlike most other castles.

Does the tour include transportation from my hotel?

Pickup is included from Portoroz. The tour departs from there and returns to the same location at the end of the day.