Postojna Cave & Predjama Castle - Shore Excursion from Trieste

Highlights

Inclusions

Itinerary

1. 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).

   Passes by

2. 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 hAdmission included

3. The Predjama Castle reigns over the surrounding area, not far from the Postojna Cave, in the idyllic village of Predjama. This picturesque, magnificent, defiant, mysterious and impregnable castle has been perched up in the middle of a vertical 123-meter high cliff for more than 800 years. Its romantic appeal is further emphasized by the idyllic Lokva River, which disappears into the underground world deep down below the castle. As the only preserved cave castle in Europe, the Predjama Castle offers a unique insight into the building techniques and resourcefulness of people in the Middle Ages, who were looking for and found a safe harbor for themselves right at the entrance into the cave. During a siege that took place in the 15th century, the castle provided a refuge for its best known and most notorious owner - Erazem of Predjama. The legend about the courageous robber baron Erazem, who remained undefeated until one of his servants betrayed him, is still in people’s minds, inspiring and alluring as ever. It was this safe abode of his which helped the brave knight resist the besiegers without much difficulty for more than a year.

   1 hAdmission included

Cancellation

Free cancellation up to 24 hours before the experience starts, for a full refund.

Reviews

Ratings come from 30 reviews collected by our booking partner. They are travellers' own words, in the order they were written — never reordered to flatter the experience.

Showing reviews written in English.

• 5Fun and fascinating day

  The day was great, from pick up to drop off - our guide was very professional and informative about the local history, everything was as per the schedule and locations discussed and the caves and castle were fascinating.

  MauriceS248October 2026via Tripadvisor

• 5Your best option!

  Good timing with the crowds of buses that showed up after us! a very well played trip with a great guide!

  carly_rSeptember 2026via Viator

• 5Amazing castle and cave!

  Caves and castle were amazing! 45 minute drive in a comfortable bus. The only hitch was a lack of communication regarding what kind of vehicle to look for and a miscommunication as to the meeting place.

  Road19969893429September 2026via Tripadvisor

• 4Wish they could shorten the travel time

  Really fun overall though a little expensive, maybe because it’s so popular that there are more visitors than tours to accommodate. Narrow and windy roads are what take up most of the time, wish they could improve that some, especially with the number of visitors. Excellent driver and guide but unfortunately I don’t remember their names.

  TravelerKai79August 2026via Tripadvisor

• 4Safe and alert driver...

  Safe and alert driver with a knowledgeable guide . The castle was a thrill and the cave was exhilarating

  pezmezJuly 2026via Viator

• 5Castle & cave

  Wonderful experience! Train ride into the cave was exciting! Amazing cave! Very very big… we had a fantastic time!

  Wendy_WOctober 2025via Viator

Know before you go

How it compares in Trieste

• Its from-price is 26% below the median of the 47 day trips we list in Trieste.
• Its length is typical for the group.
• By number of reviews it ranks 8 of 47.
• The operator lists free cancellation on it.

About Trieste

Trieste is an Adriatic port on Italy's border with Slovenia, a city of Habsburg-era palaces, old coffeehouses and a great square that opens onto the sea.

Trieste was the Roman town of Tergeste and became the main seaport of the Habsburg empire after it was declared a free port in 1719. Its grand centre dates from that period: Piazza Unità d'Italia, a vast square of palaces with one side open to the water, the Canal Grande, a short canal lined with cafés and a church, and the grid of the Borgo Teresiano. Above the old town, the cathedral of San Giusto and a castle crown a hill, with a Roman theatre below.

Top-ranked sights in Trieste: Piazza Unità d'Italia (Piazza Grande), Miramare Castle (Castello di Miramare).

See all 209 experiences in Trieste