Postojna Cave & Predjama Castle: Experience Slovenia's Underground Beauty & History

Explore the breathtaking beauty and rich history of Slovenia’s Postojna Cave and Predjama Castle. Ride an electric train through the 21 km long cave system and marvel at its stunning formations. Discover the fascinating world of the Proteus Anguinus, the ‘baby dragon’ of the underground.

Duration: 6 hours
Cancellation: 24 hours
Highlights
  • Postojna Cave - Postojna cave entrance fee
  • Predjama Castle - Predjama Castle entrance fee
What's Included
  • Entrance to Postojna Cave
  • Entrance to Predjama Castle
  • Audio guide in Predjama Castle
  • Skip the line service
  • Pick up and drop off service in central Ljubljana
  • English speaking driver/guide
  • In-vehicle air conditioning
What's Not Included
  • Food and drinks
  • Your personal expenses
Additional Information

On this day we take you to the biggest and worldwide known Slovenian cave system - the Postojna caves. Amazing two million years old and 21 km long system of underground caves is one of the most easily accessible networks of underground caves in the world. First, you will experience the ride by electric train, after that, a guided walk will follow…

Location
Postojna Cave
Jamska cesta 30
Cancellation Policy

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

Customer Ratings
4.8
(756 Ratings)
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Caroline
May 10, 2025
Great trip - 2 amazing sights! - Great trip. Small minibus with a friendly informative driver / guide who spoke excellent English. Easy half day trip from Ljubljana. Both sights are impressive and well worth seeing and this organised trip made it really easy and hassle free. Would definitely recommend it to anyone.
Review provided by Tripadvisor
140patriciak
May 9, 2025
Excellent guide, exceptional venues - Our guide, Kia, was great, telling us history and stories during the van ride to the Castle and the Cave. She couldn’t got in with us (we had audio guides) but she gave clear direction on the process and was waiting for us when we exited the sites. Safe driver. The experiences, especially at Postojna Cave, were great!
Review provided by Tripadvisor
Jeremy_m
May 8, 2025
Amazing tour - five stars! - This was an amazing trip. We had a first class, extremely knowledgeable tour guide (David), who went out of his way to give us the best experience possible. The castle and caves were amazing. One of the best tours of this kind I have ever done.
Review provided by Viator
Marirosac2019
May 8, 2025
Slovenia a world to discover - With 40 friends from Turin we visited Ljubljana and the Castle by Funicular a wonderful experience!! with truly formidable Eliano guide and the following day the Postojna Caves another exceptional experience both for the site and for the perfect organization!! Must see places close to Italy and not very well known. marirosa Christians April 2025
Review provided by Tripadvisor
Stellatravels100
May 8, 2025
Excellent Tour! Highly Recommend - Excellent tour! Very informative. Our guide was amazing. She was very informative and loved her job. Her energy was contagious.
Review provided by Tripadvisor
Patricia_k
May 8, 2025
Excellent guide, great sights - Kia was an excellent guide, sharing stories and facts on our drive to the castle and caves. She couldn’t go in with us, we had audio guides, but she provided clear instruction on what we needed to do. Her English was impeccable. The castle and especially the cave were exceptional and I highly recommend.
Review provided by Viator
Z5784kyshirleyd
May 4, 2025
Wonderful - The whole experience was wonderful. David was a very friendly, helpful and knowledgeable guide. The caves were exceptionally good. Would have loved to go again straight away. So much to see. The castle was magnificent. A bit testing with all those stairs, but what else would you expect! Loved the drive up and back as well. We would recommend this trip to anyone.
Review provided by Tripadvisor
Pespinoza3ve
May 3, 2025
Unmissable excursion in Ljubljana - We left for the tour at 9am and passed typical villages whose landscapes are postcard before arriving at our first stop which was in Postonia cave, a surreal experience and all very well organized Disney theme parks. Then we went to Predjama Castle, where our guide told us part of the history of the country the number of castles they have and ka gistoria particular to Predjama Castle. In both places, both in the Caves and in the castle before entering you can rent the audio guides where you can place the language to listen as you go into both places the history of each, as well as the points of interest. Having the audio guides enriches the ride and is my biggest recommendation.
Review provided by Tripadvisor
Caroline_m
May 2, 2025
Nice half day trip - I specifically chose this tour as it was a half day trip and wanted to spend the afternoon in Ljubljana after. Both the castle and the caves were amazing and well worth the trip. It was a little rushed over all but both sites were very busy with tourists so it was nice to have someone experienced to pick you up and drop you off right where you needed to be each time. Our guide was very friendly and provided extra information along the way. We were fortunate not to hit traffic on the day we went, but I wouldn't schedule myself too tightly if you are considering doing this trip in general. Overall a very fun trip and highly recommend!
Review provided by Viator
Hadzhipetkova
May 1, 2025
A must do! - This was my second tour with the same company. This time our tour guide/driver was VLADIMIR. VLADIMIR is by far the funniest guide I ever met! What a sweet grandpa! POSTOJNA CAVE was Fantastic! WOW! It is the biggest and most colourful cave I have ever been to! Pictures and videos are allowed and they come out fantastic! On your way in and out, you get to ride on a team-park style train, it’s better than Disneyland ride, honestly! They gave us like 2 hours in total but if you are not limited by time you could easily spend way longer in there. However, the place is really crowded. And PREDJAMA CASTLE is quite unique, half a building, half a cave. You get a audio guide at the door and they have 17 languages, I believe, very easy to use. The explanations are short and engaging. It takes around an hour and a half to get around the castle and the yard if you are not rushing.
Review provided by Tripadvisor
From $123
up to 15 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).