Postojna Cave & Predjama Castle from Koper

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

Cruise ship passengers must provide the following information at time of booking: ship name, docking time, disembarkation time and re-boarding 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

Cancellation Policy

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

What‘s Included

Driver/guide

Insurance

Hotel/port pickup and drop-off

Food and drinks

Gratuities

What To Expect

Koper

Your guide will pick you up at the agreed starting point in Koper, Slovenia - hotel, cruise terminal, bus station, 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).

2 hours•Admission Included

Options

Postojna Cave & Predjama Castle from Koper

Pickup included

Reviews

4.30

33 reviews

Total reviews and rating from Viator & Tripadvisor

This was a much bigger...
Lea R,
Jul 9, 2025
- Viator
5.00
This was a much bigger group than expected. It was a bus. But it was a great adventure! The castle was great but did have lots of Stairs to climb. Not a problem with my group though. And the caves were beautiful and cold. Bring a jacket unless you want to buy one
Incredible Tour!
Tiffany G,
Jul 9, 2025
- Viator
5.00
Absolute must see! Can't say enough about this trip! Highly organized, nice tour bus with friendly staff, the cave and castle were spectacular!
Avoid this trip
sheryll d,
May 14, 2025
- Viator
1.00
A terrible experience. Collected in a bus with no air conditioning, it was ridiculously hot ! We then had to pick up other guests 45 minutes away ! After coming out of the caves ( which are fabulous) , the bus driver was an hour and fifteen minutes late as he’s left to pick up school children from the local school ! The journey back took hours as again we had to detour to drop off other cruise passengers . The result was a 5 hour tour actually took 8 hours !! I would 100% NOT RECOMMEND this trip . Ernest the young guide was wonderful and did his best with what was a group of very unhappy customers
Avoid this tour operator
Scott G,
May 13, 2025
- Viator
1.00
Great guide, amazing caves and castle, but a lousy tour operator, which took away from the experience. A 5 hour tour turned into 8 due to a series of lazy decisions and poor planning by the tour operator. Unscheduled bus pick- ups and stops, bus delays (driver didnt return after lunch), and 3-4 hours in a hot (un air conditioned) bus led to a sweaty and cranky set of passengers. Apparently, not the first time, so avoid this operator and go with someone else.
The caves and castle were...
Diana V,
May 3, 2025
- Viator
5.00
The caves and castle were amazing! Only thing is that it was very cold so take a big jacket and long pants. It gets pretty cold in the caves. Ernest was a very nice tour guide.