Postojna Cave & Predjama Castle from Trieste

Overview

Available languages

German

English

Italian

5 hours

Mobile ticket

Visit Postojna Cave, the best-known cave in the world, and The Predjama Castle, the only preserved cave castle in Europe.

Additional Info

Wheelchair accessible

Infants and small children can ride in a pram or stroller

Service animals allowed

Public transportation options are available nearby

Infants are required to sit on an adult’s lap

Specialized infant seats are available

Transportation options are wheelchair accessible

Travelers should have at least a moderate level of physical fitness

Hotel Guests must advise supplier as soon as possible: hotel details

Cruise Passengers must advise supplier as soon as possible: ship name, arrival time and departure time

The temperature inside the cave is constant throughout the year (10 °C), so warm clothing and sports footwear are recommended

The tour can be booked in English, Italian, or German. Occasionally, the escort guide in the vehicle may speak only English, depending on availability, however, the guided visits in the cave and castle will be conducted in the booked language.

Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

What‘s Included

Pickup and drop-off

Driver/guide

Insurance

Transportation

Food and drinks

Gratuities

What To Expect

Trieste

Your guide will pick you up at the agreed starting point in Trieste - hotel, cruise terminal, train station etc. (please contact us after the booking so the appropriate arrangements can be made).

•Admission Not Applicable

Postojna Cave

Postojna Cave, the queen of all caves, is the best-known cave in the world. It is also the greatest tourist attraction in Slovenia and one of the world’s largest karst monuments. This is the only place in the world where the underground landscape can be traversed on an electric train and where you get to meet this underground kingdom’s most famous inhabitant – the proteus (olm) – up close. A fantastic web of tunnels, passages, galleries and halls, astonishing diversity of karst features, as well as easy access are certainly the main reasons for such popularity of the cave and a large number of visitors (more than 36 million of them in over 200 years).

3 hours•Admission Included

Options

Postojna Cave & Predjama Castle from Trieste

Reviews

4.68

108 reviews

Total reviews and rating from Viator & Tripadvisor

Deception when booking
Bernd H,
Jun 22, 2025
- Viator
1.00
My wife and I had a round trip to Prediama Castle and Postonija Cave with guide in German language booked. Upon departure we learned that the trip only with English-speaking guides will. Since we don't understand English, we couldn't follow the detailed information. Serh, very annoying and the trip was for us It's a total bust. We also had to move away from an American Have fellow travelers berated because he felt disturbed because we tried to translate the contents of the tour guide. Even after leaving the bus, we were still insulted.
The caves are amazing. I...
Gabriel C,
Jun 10, 2025
- Viator
5.00
The caves are amazing. I have been to many, and these are the best experience. The castle cave is also a good historical landmark if you don’t like stairs. It’s very interesting tour as long as you like walking up stairs. The tour guide Jimmy was great, with good stories and kept the tour organized. Definitely worth the effort! But expect a bit of effort walking up paved paths and stairs, but the views motivate well.
Slovenian caves are castle.
Diane C,
Jun 10, 2025
- Viator
5.00
Very interesting caves and castle in Slovenia. Heard about it from a relative and would recommend it to others.
Fascinating Cave and Castle in Slovenia
Dawn N,
Jun 9, 2025
- Viator
5.00
The cave and castle were absolutely worthwhile to visit. This was a half day trip from Trieste that gave us a glimpse of Slovenia, and I definitely want to go back. Ernie was a great tour guide. He was very knowledgeable and entertaining. Misha, our driver also did an excellent job. If you are looking for a fun adventure then I highly recommend seeing Postojna Cave and Predjama Castle. *A few things to keep in mind… 1) This tour includes a lot of stairs and a decent amount of walking. 2) The temperature in the cave is at a constant 10 degrees C. A jacket is not a bad idea even in summer (but we did fine without one, too). 3) Remember to bring your passport with you since you will be crossing an international border. 4) Eat a good breakfast or bring a snack. There is not much time between activities to stop and eat.
Great
Colleen L,
Jun 3, 2025
- Viator
5.00
Wow amazing tour words cannot describe what we experienced our guide Ernie was excellent as the driver 👍