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Postojna Cave and Predjama Castle Tour from Ljubljana

Ljubljana, Slovenia

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Free Cancellation
up to 24 hours in advance
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icon6 hours 30 minutes  (Approx.)
Hotel pickup offered
Mobile ticket
iconOffered in: English


Explore the fascinating network of subsurface caves during a guided tour of the Postojna Caves and Predjama Castle, leaving from Ljubljana. As you enter the two-million-year-old caves aboard a mini-train, learn about why this is one of Slovenia’s most popular attractions. Walk with your guide and witness bizarre stalactites, stalagmites, and other rock formations that make up the 13-mile-long (21 km) system of underground caves. Also venture to the enchanting Predjama Castle, a famous castle that still clings to Slovenia’s limestone cliffs.
  • Travel along the biggest Slovenian cave systems
  • Ride by electrical train through majestic cave halls
  • Learn about the caves 'underworld system'
  • See one of the most interesting baroque castles
Transportation with Mercedes-Benz, BMW or similar type of vehicle
English-speaking guide
Audio-guide in Predjama Castle
Hotel pickup an drop-off service
Postojna Cave entrance fee
Predjama Castle entrance fee
Food and drinks, unless specified

Departure Point

Traveler pickup is offered
We are kindly asking you to inform us where you are staying or which pick-up point from the list of our general pick-up locations did you choose, so that we can provide all the necessary information and find a pick up location close to you.

As different pick-up locations have different pick-up times you will be contacted through Email and all the details about the pick-up will be given.

Below you can find three more of our general pick-up locations:

Slovenian tourist information center (Ad.: Krekov trg 10 , 1000 Ljubljana)

Levstik sqaure (Ad.: Levstikov trg 5, 1000 Ljubljana)

French Revolution Square ( by the obelisk Ad. : trg Francoske Revolucije,Ljubljana)
*A short delay of up to 15 minutes can occur due to traffic conditions and different pick up locations.

Departure Time

8:30 AM
Meet your guide in central Ljubljana and settle into your ride as you set out for two of Slovenia’s most enchanting wonders, Predjama Castle and the Postojna Caves. First, go with your guide to the Postojna Caves and uncovers the fascinating world of an unusual amphibian known as the blind salamanders or referred to locally as “human fish.” Explore this enthralling underground world, while your guide explains the geologic forces that created them.

Next, head to the Predjama Castle, a storybook castle wedged beneath a dramatic stone archway and against cliff. Admire the unique Renaissance architecture of the castle located in south-central Slovenia, in the historical region of Inner Carniola. From the castle, enjoy views of lush, rural Slovenia.

After that, sit back and relax on your ride back to Ljubljana.
Stop At:  
Postojna Cave
Postojna cave entrance fee
Duration: 1 hour 30 minutes
Admission Ticket Included
Stop At:  
Predjama Castle
Predjama Castle entrance fee
Duration: 1 hour 
Admission Ticket Included
  • Confirmation will be received at time of booking
  • Comfortable walking shoes and camera are recommended
  • Minimum numbers apply. There is a possibility of cancellation after confirmation if there are not enough passengers to meet requirements. In the event of this occurring, you will be offered an alternative or full refund.
  • A minimum of 2 people per booking is required for the private option.
  • Local Contact Details:
  • You are required to specify the name of your hotel and contact telephone number during your stay in Slovenia. This is important information the tour operator requires in case you need to be contacted regarding changes in the tour departure times.
  • Not wheelchair accessible
  • Most travelers can participate
  • This tour/activity will have a maximum of 21 travelers
  • OPERATED BY To do in Slovenia

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

  • This experience requires a minimum number of travelers. If it’s canceled because the minimum isn’t met, you’ll be offered a different date/experience or a full refund.

Learn more about cancellations.

The answers provided below are based on answers previously given by the tour provider to customers’ questions.
What is the maximum group size during Postojna Cave and Predjama Castle Tour from Ljubljana?
This activity will have a maximum of 21 travelers.

See all safety measures taken by Postojna Cave and Predjama Castle Tour from Ljubljana.

Traveler Photos

Traveler Tips

  • "The castle visit is a must - you will need to climb steep steps to reach the top - well worth it." See review
  • "Overall this tour is the place almost all tourists are going too, so be ready for big groups, but it is very informative, and helps you appreciate the land and layout, of what used to be!" See review
  • "a beautiful little castle doesn't take long to get round but worth the visit, interesting to see the different levels build over the cave that was once also lived in." See review


237 Reviews
2 stars
1 star
Reviews by Viator travelers
Showing 1-10 of 237 reviews
Cave walking tour.
, Mar 2020
The caves are beautiful and well worth the trip. You take the train in ~2 km and then have a one hour walking tour with a guide. Then you take the train back out. The castle tour is self-guided and much less crowded, not that there were large crowds at the cave. The walking tour takes about 45 minutes. It was very interesting. Our driver and guide, Barbara L., did an excellent job. She was very personal and knowledgeable. All in all, an excellent day.
comport tour with kindness
, Mar 2020
This Tour was very memorable. Guide was really kind and talked about many helpful things on the way to destination. I could easily get the cave and castle and fully enjoyed the tour even though it was so cold. I'd highly recommend this tour if you want to get Postojna Cave and Predjama Castle. Thank you!
icon Response from Host , Mar 2020
Hi hyemyon, we are happy to hear you had nice time on one of our tours. Postojna Cave amazes with its natural heritage and historical Predjama Castle shows its worth as largest cave castle in the world. :) In case of wanting to return in summer we welcome you back anytime! Best regards to you! Tadeja Mohar - ToDoInSlovenia team
warm and easy tour
, Mar 2020
Ellena was a really kind guide. She welcomed us warm and talked about Slovenian culture, life and so on. Using this tour, we could reach our destination very quickly. I’ll highly recommend this tour if you want to go postojna and predjama castle.
icon Response from Host , Mar 2020
Dear myong, thanks for your opinion on Elena - we will pass your nice comment to her ;) Surely she will be happy hearing your opinion on her guiding. Travelling in small groups is much easier and tours are more fun and private! :) Best regards to you, Tadeja Mohar - To Do In Slovenia team
Jaial A
, Jan 2020
Barbara was a fantastic guide, very informative and attentive to everyone's needs in the group. Everything ran smoothly and on time, and both attractions are well worth visiting. Barbara will provide plenty of additional advice about travelling elsewhere in Slovenia as well.
icon Response from Host , Jan 2020
Dear Jaial A, We agree Postojna cave and Predjama castle is an unmissable experience. Thank you for your feedback we are so happy to hear it. Barbara is one of our best guides and she always does everything and beyond for you to have a great time at our trips. We always make sure everything is as smooth as possible and with this kind of attractions that Slovenia has to offer it is easy to do so. Barbara will be happy to see this review for sure. Thank you again for traveling with us as your travel companion. Best regards, Martin Popit
Caves and castles
, Dec 2019
Very good well put together trip, firstly to caves which were incredible. I have never seen such a vast amount if caves sone if which is covered on a train and a cerrain amount on foot. After some spare time where I managed to get some lunch continued to castle which is an amazing as set in cliffs with many levels (not suitable if you have trouble walking) with an accompanying audio guide. A unique fortress
icon Response from Host , Jan 2020
Dear 644WOMBAT644, thank you so much for your review, we are glad that you had a very good tour to Postojna caves and Predjama castle with us as you travel companion. It is so nice to hear that you are satisfied with our services, as all of our trips are carefully put together. Caves are amazing we agree with you as well as the unique Predjama castle, it is amazing and worth a visit for sure. In case you come back to Slovenia, we would be glad to help you again. Best, Martin Popit
Postojna Caves and Predjama Castle
, Nov 2019
Well organised tour with lovely driver. Both of these sights are right up there with the best you’ll ever see. This tour is a must when in Slovenia.
Great half day tour
Diane S
, Oct 2019
Our guide Lana was very charming and a great guide. The Postojana Caves felt like being in a fairytale, however, our guide from the Caves (not Lana) rushed us through the caves not giving us much time to take photographs. Predjama Castle, the largest cave castle in the world, was charming. I would recommend this delightful tour.
Two Contrasting Attractions
Ken G
, Oct 2019
The cave complex is the largest we have ever seen and we have visited many around the world. They are entered by way of a railway journey of 5 kms in length followed by a walk of 1.5 kms over smooth paths but at times with steep gradients. The mass of internal features are simply spectacular. By contrast, "the castle within a cave" which was the second visit of the tour was a quite different but equally amazing sight. The whole day was most pleasant in a group of 6 and was well looked after by Gal, our helpful and knowledgeable guide.
icon Response from Host , Oct 2019
Dear Ken G, thanks for sharing your thoughts about our trip to Postojna cave and Predjama castle, we are happy to get a 5-star review. The Cave system is really big, it is so big that you have to enter it with a train to get the whole experience. Than the walking part comes, where you walk between different sculptures and halls. Finishing the trip with a visit of Predjama castle is the way we do it. It is one amazing structure from the medieval times. Gal your guide for sure told you a lot about it and he will be happy to read your feedback. Thank you and if you have some plans traveling back to Slovenia let us know. Best regards, Martin Popit
Caves and Castle
Pat P
, Oct 2019
I have been in several caves, but I've never seen anything as remarkable and beautiful and interesting as the Postojna Caves! The Castle was quite interesting because it was built into a mountain, but nothing else about the castle was unique--oh, except for the torture room
icon Response from Host , Oct 2019
Dear Pat P, Thank you for your review we are happy that you share your feedback with everybody here at Tripadvisor. We see you are already an expert of caves 😊 it is truth that Postojna cave is really something you can not find anywhere in the world but here in Slovenia. Castle is really a unique one since it is built into a cave at the middle of rocky cliff. If you went to the biggest castles in the world than this one is the smallest one and then maybe not interesting as you would think but if you listen to all the stories behind it makes this experience even more attractive. Thank you again and if you are coming back to Slovenia, let us know. Best regards, Martin Popit
Amazing castle
Milagros G
, Oct 2019
The trip was Amazing. I enjoyed visiting the caves and the castle. We also had plenty time for a lunch and buy some souvenirs. I totally recommend this trip.
icon Response from Host , Oct 2019
Dear Milagros G, thank you so much for your amazing review, we are happy that you enjoyed Postojna cave and Predjama castle tour of To do in Slovenia. Wooow! Giving us a feedback that it was amazing really gives us some extra boost for the end of the summer season. Our tours are carefully planned so that you have the time to enjoy attractions and to have some free time as well. Thank you for the recommendation, we had a great time with you too. Kind regards, Martin Popit

Product code: 3312LJ_POS

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