Tours/Koper/Postojna Cave & Predjama Castle - Shore Excursion from Koper

Postojna Cave & Predjama Castle - Shore Excursion from Koper

4.6(19)Koper5 hours
VIATOR4.5(12)TRIPADVISOR4.7(7)
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper
Postojna Cave & Predjama Castle - Shore Excursion from Koper

At a glance

Duration
5 hours
Price from
$134 / person
Location
Koper, Slovenia
Rating
4.6 / 5 · 19 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
$134

Larger groups pay less per person.

In demand: 19 of the next 30 departures are already sold out.

From the operator’s live schedule on Viator, checked Oct 6.

Tour Options

Postojna Cave & Predjama Castle - Shore Excursion from Koper

Pickup included

Itinerary

Koper
Pass by

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).

Predjama Castle
Admission included120 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.

Postojna Cave
Admission included120 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).

What's included

Included
Driver/guide
Insurance
Hotel/port pickup and drop-off
Not included
Food and drinks
Gratuities

Pickup Locations & Times

Please advise supplier as soon as possible your pickup details.

Traveller Ratings

Reviews collected by Viator and Tripadvisor

4.6
19 reviews
5
14
4
3
3
1
2
1
1
0

How it compares in Koper

  • No. 15 by number of reviews among 126 tours in Koper
  • Starting price $134 is 11% below the typical $152 for tours of similar length in Koper

Excurgo comparison of 126 Viator tours, recalculated daily.

Important Information

  • Wheelchair accessible
  • Infants and small children can ride in a pram or stroller
  • Service animals allowed
  • Specialized infant seats are available
  • Transportation options are wheelchair accessible
  • Suitable for all physical fitness levels
  • 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

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 Postojna Cave & Predjama Castle - Shore Excursion from Koper take?

Postojna Cave & Predjama Castle - Shore Excursion from Koper lasts about 5 hours. The itinerary has 3 stops.

How much does Postojna Cave & Predjama Castle - Shore Excursion from Koper cost?

Prices start at $134 per person for this Koper 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 Postojna Cave & Predjama Castle - Shore Excursion from Koper run?

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

Does Postojna Cave & Predjama Castle - Shore Excursion from Koper sell out?

It can: 19 of the next 30 departures are already sold out, so booking ahead is a good idea.

Can I cancel Postojna Cave & Predjama Castle - Shore Excursion from Koper 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. Please advise supplier as soon as possible your pickup details.

What languages is Postojna Cave & Predjama Castle - Shore Excursion from Koper 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 and small children can ride in a pram or stroller Specialized infant seats are available

Is the tour wheelchair accessible?

Wheelchair accessible Transportation options are wheelchair accessible

Will my booking be confirmed immediately?

Yes, bookings are confirmed instantly.

Reviews(19)

Reviews collected by Viator and Tripadvisor

J
Jessica_V
September 28, 2026 · via Viator
5 stars perfect for cruising!

Very easy pick-up from the cruise terminal. Our guide did a great job. Was so much cheaper then going throught the cruise provider.

7
737rowenad
September 8, 2026 · via Tripadvisor
Worth it

The scale of the caves must be seen to be understood- they are huge. Simply amazing to go through. Really well organised but unfortunately was ruined by a couple of very selfish people who insisted on chatting during each talk from the guide. Disappointing but there is not much you can do when you get these people. I have never heard grown adults getting shushed as many times and still being clueless. The castle was also great, but a little rushed. There is a lot to explore and a lot of stairs to climb. If you are travelling to the castle make sure you get a tour like this that allows you time inside.

L
Lynne_L
August 23, 2026 · via Viator
Experience great, logistics not as great.

The cave experience itself was fantastic. The wait before even getting in line to get on the train was frustrating. We left the port at 10 am and returned at 4:30. We were able to go into the castle immediately. The guide told us the drive to the cave would be a half hour. It was really 45 minutes and, when we got there, we had an hour wait before we could get in line for the train. We waited in the train line an additional 20 minutes.

J
Jody_T
August 13, 2026 · via Viator
Amazing!! Our tour guide...

Amazing!! Our tour guide was wonderful and the castle and caves were unlike anything we'd ever seen.

L
Linda_R
June 28, 2026 · via Viator
Cave and castle tour

The cave tour was a fun adventure. We enjoyed riding the train and walking through the different chambers and levels. The castle tour was also very interesting. Our guide was very knowledgeable and friendly. Would definitely recommend this tour.

M
Meander58287674027
June 4, 2026 · via Tripadvisor
Review

Magnificent underground tunnel structures you will not believe!

A
Anonymous
May 25, 2026 · via Viator
Mia was great! Loved the...

Mia was great! Loved the caves and had the best croissant in one of the restaurants there. Train ride was fun, not claustraphobic at all.

I
IreneM
May 30, 2025 · via Viator
We thought the cave and...

We thought the cave and castle were amazing experiences. We were disappointed however that the excursion “hosts” did not provide any history or background during the drive.

C
cherylgK8049BJ
November 15, 2024 · via Tripadvisor
Great day exploring caves and castle

From pick up to drop off we had a fabulous day with Koper Tours. We left the port and along the way to Postjona Cave we learned about Koper and the people who lived there. The time at the caves was incredible (be sure to dress in layers). The caves are incredible and while we were part of a larger group for this tour, we were able to learn a lot and see alot. Once we finished at the caves we went over to Predjama Castle which was breathtaking. At the castle we had the opportunity to tour the inside- many rooms to explore and the audio device was easy to use and full of great information . Many groups from our ship only saw the outside of the castle, but we were fortunate to see the inside. I highly recommend Koper Tours for small group excursions from the port of Koper! We had a great day!

K
KVandT
October 14, 2024 · via Tripadvisor
Cave is awesome; castle interesting. More of a driver and not a tour guide though.

The cave is amazing. Great pictures. Bring a raincoat as it’s chilly and water drips from the ceiling. Castle is interesting. I wouldn’t say our tour guide was a guide; it’s more of a driver to the two attractions. He said nothing in the car on the drive to the group, just chatted with the man up front. Nice young man but I would have liked to hear about the area during our drive.

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