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Tours/Trieste/Postojna Cave & Predjama Castle - Small Group Tour from Trieste

Postojna Cave & Predjama Castle - Small Group Tour from Trieste

4.8(53)Trieste5 hours
VIATOR4.9(45)TRIPADVISOR4.5(8)
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
+3 photos
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste
Postojna Cave & Predjama Castle - Small Group Tour from Trieste

At a glance

Duration
5 hours
Price from
$143 / person
Location
Trieste, Italy
Rating
4.8 / 5 · 53 reviews
Languages
DE, EN, IT
Group
Small group, up to 50
Cancellation
Free cancellation up to 24 hours before
Hotel pickup
Available
Confirmation
Instant
Ticket
Mobile or paper ticket accepted
Operator
KoperTrips.com

Description

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

Schedule & prices

Runs
Every day
Next available
Sat, Oct 10
Adult
$143

In demand: 13 of the next 30 departures are already sold out.

From the operator’s live schedule on Viator, checked Oct 7.

Tour Options

Postojna Cave & Predjama Castle - Small Group Tour from Trieste

Itinerary

Trieste
Pass by

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).

Postojna Cave
Admission included180 min

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).

Predjama Castle
Admission included60 min

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.

What's included

Included
Pickup and drop-off
Driver/guide
Transportation
Insurance
Not included
Food and drinks
Gratuities

Traveller Ratings

Reviews collected by Viator and Tripadvisor

4.8
53 reviews
5
47
4
4
3
1
2
0
1
1

How it compares in Trieste

  • No. 14 by number of reviews among 204 tours in Trieste
  • Starting price $143 is 24% below the typical $189 for tours of similar length in Trieste

Excurgo comparison of 204 Viator tours, recalculated daily.

Important Information

  • Infants are required to sit on an adult’s lap
  • Specialized infant seats are available
  • Service animals allowed
  • Public transportation options are available nearby
  • Infants and small children can ride in a pram or stroller
  • Transportation options are wheelchair accessible
  • Wheelchair accessible
  • Travelers should have at least a moderate level of physical fitness
  • Cruise Passengers must advise supplier as soon as possible: ship name, arrival time and departure time
  • Hotel Guests must advise supplier as soon as possible: hotel details
  • 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

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

1+ days before100% refund
0–1 days before0% refund

Frequently asked questions

How long does this tour take?

Postojna Cave & Predjama Castle - Small Group Tour from Trieste lasts about 5 hours. The itinerary has 3 stops.

How much does this tour cost?

Prices start at $143 per person for this Trieste experience, booked through Viator with the price shown before checkout. There is 1 booking option, so the final price depends on the option you choose.

What days does this tour run?

According to the operator’s current schedule, it runs every day.

Does this tour sell out?

It can: 13 of the next 30 departures are already sold out, so booking ahead is a good idea.

Can I cancel this tour for free?

Yes. Cancel at least 1 day before the start for a full refund. Later cancellations are non-refundable.

Is hotel pickup included?

Yes, pickup is offered.

What languages is this tour offered in?

The experience is available in DE, EN, IT.

Is this a private or a group tour?

It is a small-group experience with a maximum of 50 participants.

Is the tour suitable for children?

Infants are required to sit on an adult’s lap Specialized infant seats are available Infants and small children can ride in a pram or stroller

Is the tour wheelchair accessible?

Transportation options are wheelchair accessible Wheelchair accessible

Will my booking be confirmed immediately?

Yes, bookings are confirmed instantly.

Reviews(53)

Reviews collected by Viator and Tripadvisor

E
Eric_A
September 19, 2026 · via Viator
It is beautiful and the...

It is beautiful and the train ride is very cool. It is quite cool so bring a jacket to keep warm and good shoes as the pathway is wet.

E
Ewa_M
August 31, 2026 · via Viator
Amazing

Cave and castle both must see in Slovenia. Trip left us speechless. Stefan our tour guide had good knowledge about history and we spent nice time. Definitely i will recommend this trip to everyone who wants to visit Slovenia.

J
Joel_R
July 14, 2026 · via Viator
Great Cave Tour

We did not expect such a great tour of this amazing cave. It was not only one of the largest caves we ever experienced, but equally beautiful as well. The tour guide did an amazing job explaining all the details.

J
Juliet_M
July 10, 2026 · via Viator
The Postojna Cave & Predjama Castle - Small Group Tour from Trieste

The Postojna Cave & Predjama Castle - Small Group Tour from Trieste was even better than we imagined! The Predjama Castle was absolutely incredible—built right against the wall, it’s a sight to behold. There were lots of stairs to climb, but we loved the architecture. The Postojna Cave was truly spectacular. Stephan, our driver, was so friendly and shared his knowledge of the region with our group.

J
june_m
June 27, 2026 · via Viator
Wonderful day.

It is a wonderful day, lots to see. There is lots of walking in the caves, up hills and down but not too strenuous. The castle through is built into the side of a cliff so lots of steps. Mia was a wonderful guide for the day.

D
Donald_L
June 19, 2026 · via Viator
sLOVEnia!

Beautiful, but lots of stairs, some very steep. The portion of Slovenia we saw was gorgeous. Will plan on returning.

S
Scott_S
June 7, 2026 · via Viator
I had an absolutely...

I had an absolutely unforgettable experience visiting Postojna Cave in Slovenia. The cave itself is breathtaking, with massive stalactites and hidden chambers. The highlight was definitely the train tour—such a front-row seat to the cave’s magic. We did book a private small group tour, but unfortunately, it ended up being a large bus with a lot of cruise passengers, which was a bit disappointing. Still, the cave itself and the guide were phenomenal—it’s a must-see in Slovenia!

S
Silvia_C
June 1, 2026 · via Viator
It is worth it. You visit two...

It is worth it. You visit two spectacular sites with enough time to see everything. There is no guide in Spanish, but with an Italian guide and the audio guides in Spanish, it is sufficient to understand what you are visiting.

M
Michael_R
May 29, 2026 · via Viator
Good tour, operator was...

Good tour, operator was friendly and knowledgeable. Trip to the caves was comfortable and the return was prompt.

D
Donald_D
May 27, 2026 · via Viator
What can I say? Postojna...

What can I say? Postojna Cave was an awesome experience, massive in size and truly spectacular. History of Predjama Castle was interesting. Tour hostess and driver were great

$143/ person
4.8(53)
Duration5 hours
LanguagesDE, EN, IT
ConfirmationInstant
Check availability on Viator →
Booked and paid on Viator.com
Free cancellation up to 24 hours before

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

No booking fees from Excurgo
Payment and confirmation are handled by Viator
Excurgo support

Excurgo earns a commission from Viator when you book through this link, at no extra cost to you.

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from$143
4.8(53) Free cancellation
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