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Postojna Cave & Predjama Castle from Koper

star-4.512 Reviews
Koper, Slovenia
Postojna Cave & Predjama Castle from Koper

From $119.77

Price varies by group size

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up to 24 hours in advance
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icon5 hours  (Approx.)
Hotel pickup offered
Mobile ticket
iconOffered in: English and 2 more
Good for avoiding crowds


Explore one of the most beautifully carved cave systems in the world with a Postojna Cave tour from Koper. This is the only cave in the world that can be toured by train making this a perfect choice for families and visitors of all abilities. You’ll pass under carved archways and through stalactite and stalagmite covered galleries all from the comfort of your seat on the train. You’ll then enjoy a guided walking tour of the cave’s underground labyrinth of tunnels, passageways, and caverns before stopping off at the Predjama Castle on your way back to Koper.
  • Explore the magnificently carved Postojna Cave on a day trip from Koper
  • Take a ride on an electric train into the heart of the cave system
  • Wander through the labyrinth of tunnels on a guided walking tour of the cave
  • Visit the mysterious Predjama Castle carved out of the mouth of a cave
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Hotel/port pickup and drop-off
Food and drinks

Departure Point

Traveler pickup is offered
- The pickup is flexible (any hotel, apartment, cruise terminal, bus station, train station etc.).
- For Cruise Passengers the tour departs from Cruise Passenger Terminal in Koper, Slovenia. Your guide will be holding a sign with KoperTrips and Viator logos.
- For Hotel Guests the departure location is flexible. Please advise supplier as soon as possible your hotel details or any other preferred pickup location.


  • Port of Koper

Departure Time

1/23/2020 - 8/10/2022
Monday - Sunday:08:00 AM - 07:00 PM
  • Confirmation will be received at time of booking
  • 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 or any other preferred pickup location
  • Warm clothes are recommended
  • Wheelchair accessible
  • Wheelchair accessible
  • Stroller accessible
  • Service animals allowed
  • Near public transportation
  • Infants must sit on laps
  • Infant seats available
  • Transportation is wheelchair accessible
  • Travelers should have a moderate physical fitness level
  • This tour/activity will have a maximum of 15 travelers

For a full refund, cancel at least 24 hours in advance of the start date of the experience. Learn more about cancellations.


12 Reviews
3 stars
1 star

Reviews by Viator travelers

Showing 1-7 of 12 reviews
This was a terrific tour! Postojna Cave...
, Aug 2018
This was a terrific tour! Postojna Cave and Predjama Castle are incredible. Our guide was entertaining, very informative and spoke excellent English. He was very helpful and answered all of our questions. Entire experience was more than what I expected. I highly recommend!
Great tour. The caves were amazing. The...
Gavin V
, Dec 2017
Great tour. The caves were amazing. The castle was beautifully maintained.
The caves are amazing, they just go...
Judith W
, Nov 2017
The caves are amazing, they just go on and on forever. Be prepared to do a lot of walking though. Also the castle is so well worth visiting.
The guide was a driver who did not...
, Oct 2017
The guide was a driver who did not speak English. He took us to the caves and handed us over to the guide for the caves. the caves were really neat. Then he took us to the castle and bought us audio guides. He didn't tell us anything much about the country other than that Mrs. Trump came from there. They should have charged less for what we got, but it was still less expensive than what he cruise ship charged. They need to have English speaking drivers who tell us about the country.
The sites visited were incredible...
, Jul 2017
The sites visited were incredible and were absolutely breathtaking. A truely unique experience well worth the time to explore. The cave provided a tour guides once inside, and the castle provided the equipement necessary to support a self guided tour. The tour guide provided by the tour company only facilitated getting everyone on and off the bus but did little else and did not provide any additional information or value. Overall, it was a worthwhile experience and should be a 'must see' if you visit Koper.
This is a tour not to be missed! We...
Myrna R O
, Jul 2017
This is a tour not to be missed! We have visited Carlsbad Caverns here in the United States, and it pales next to Postojna Cave! Words to describe it would fail. The tour takes around 90 minutes and consists of a train ride in and out and then walking around the cave with a guide. It's quite chilly in the cave, so make certain you have adequate clothing. The cave does supply jackets for those who need one. The formations are amazing, and the cave is huge. Definitely not to be missed. The castle is very interesting and also worth seeing. We were on a cruise, and the tour offered by the cruise line did not include an interior tour of the castle. This tour included everything and was for half the price! The entire area is beautiful! We loved this visit!
We were only 7 people on this tour...
Ulrich J
, Jul 2017
We were only 7 people on this tour, but our guide Dejan was only concentrating around 1 or to people. The rest of us could not hear what he was talking about on the hour long trip to the caves. The Caves were fantastic, but we were rushed through them so didn't really have time to enjoy them at all! Predjama castle had much less tourists so much more time to enjoy. Definitely worth a visit.

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