Postojna Cave and Predjama Castle Tour: Small Group Exploration from Zagreb

Explore Ljubljana, Postojna Cave, and Predjama Castle. Discover Slovenia’s capital, world-famous karst cave, and the largest cave castle. Book your adventure now.

Duration: 12 hours
Cancellation: 1 day learn more
Highlights
  • Zagreb - Starting with a hotel pickup in Zagreb at 8am, you’ll leave the city for a 1.5-hour drive to Ljubljana, the capital of Slovenia.
  • Sava River - Crossing the Sava River marks our official exit from Zagreb and the beginning of our adventure.
  • Castle Mokrice - Enjoy a relaxing drive and, just before crossing the Croatian border, you’ll spot Castle Mokrice, a medieval castle atop a hill. With a history dating back to the 15th century, it was home to many noble families, including the famous Auerspergs, and featured in a Pet Shop Boys music video.
  • Krsko - We’ll pass through Krško, a city crucial for energy in both Croatia and Slovenia, thanks to the Krško nuclear power plant. This joint venture from the Yugoslav era supplies over a quarter of Slovenia’s and 15% of Croatia’s power.
  • Novo Mesto - Along the drive, we’ll see many charming villages and towns, including Novo Mesto, a picturesque river town with rich archaeological heritage.
  • Dragon Bridge (Zmajski Most) - Our walking tour of Ljubljana begins here, exploring the city’s rich and complex history. Once a Roman city called Emona, Ljubljana is now Slovenia’s capital and largest city. Learn about Napoleon’s connection to the city, its evolution, and other fascinating facts. The Dragon Bridge, named after a legend involving Jason and the Argonauts, is a highlight. Discover how the bridge has changed over time.
  • Cathedral of St. Nicholas (Stolnica Sv. Nikolaja) - Next, we’ll visit the stunning Ljubljana Cathedral, officially Saint Nicholas Church. Built in the early 18th century and later rebuilt, it evolved from a Gothic church to a Baroque masterpiece. Discover the mythic Slovenian doors that narrate the history of Slovenia. Entry to the Cathedral costs 2 euros.
  • Triple Bridge (Tromostovje) - Jože Plečnik, Slovenia’s most famous architect, shaped Ljubljana’s identity with his urban designs between the World Wars. Learn about his inspirations as we visit the Triple Bridge, a trio of public bridges he designed.
  • Prešernov trg - Our walking tour concludes at Prešeren Square, the central square in the old town and the heart of the city. Major events in Ljubljana, from festivals to political gatherings, happen here. Learn about the square’s namesake, the poet France Prešeren, and his tragic love story with Julia.
  • Ljubljana - Enjoy free time to explore Ljubljana’s restaurants and cafes.
  • Logatec - On our drive, we’ll pass this quaint town, once eight separate villages.
  • Postojna - A town known for its museums, galleries, and festivals, including medieval tournaments.
  • Predjama Castle - Visit a remarkable Renaissance castle set in the mouth of a cave. Predjama Castle, once home to the knight Erasmus of Lueg, is also a pop culture icon, featured in a Jackie Chan movie and the Netflix show The Witcher. An audio guide will accompany your tour.
  • Postojna Cave - Our tour concludes with a guided visit to Postojna Cave Park, Slovenia’s second-longest cave system. Discovered in the 17th century, the cave became a tourist destination after Archduke Ferdinand’s visit in 1819. Learn about its history, including its use as an ammunition storage during wartime, as you explore the cave system.
What's Included
  • All taxes and VAT
  • Official English speaking tour guide (other languages on request)
  • Road tolls and parking
  • Pickup and drop-off from Central Hotels in Zagreb
  • Transport with a comfortable sedan car or passenger van
What's Not Included
  • Entrance fees: Postojna Cave & Predjama Castle (41,90€)
  • Meals and personal expenses
  • Gratuities
Additional Information

Come explore Ljubljana, Slovenia’s capital, renowned for its architectural beauty and distinctive culture. Following your visit to Ljubljana, delve into the subterranean world of Postojna Cave, the globe’s most famous karst cave. Just a short distance from Postojna Cave, the Karst region provides a memorable journey to a storybook universe of knights. Here lies the world’s biggest cave castle, a Guinness World Record holder. Its uniqueness and peculiarity make it among the most intriguing castles worldwide.

  • Please wear comfortable walking shoes
  • Passport required. You are required to have your documents with you.
  • This tour will still operate in all weather conditions.
Location
Meteorological Post
Zrinjevac
Address: Nikola Šubić Zrinski Square in front of the meteorological pole Directions: Departure point is located 3 minutes walk from the ban Jelačić Square
Cancellation Policy

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

Customer Ratings
4.5
(39 Ratings)
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Purplegirl1
Oct 13, 2023
Brilliant tour, fantastic guide - This was a great trip, we loved it all. Our guide, Stephen, has a brain like wiki – he kept us occupied with such interesting information on history, current conditions and entertaining facts. Ljubljana is beautiful – his stops at the liqueur (blueberry – fab) and chocolate shops were brilliant. Great stories about the sites as he walked us round. The castle was worth the visit but it needs more time – an hour wasn’t enough. The caves were fantastic but it’s quite a walk, so be prepared with shoes etc. (If you're touring Croatia, then Ljubljana is actually much nearer to Rijeka)
Review provided by Tripadvisor
Soulla_y
Oct 3, 2023
Fun trip - I enjoyed myself very much, even though the whole trip was a bit rushed. It seems more time was spent getting to the sights than actual sight seeing.
Review provided by Viator
Joanne_l
Sep 30, 2023
fall in love with LJUBLJANA SLOVENIA - It was so much fun and what a value for money We had the best tour guide he was fun and enthusiastic about what he was showing us and know about everything. My husband and I have never been on a guided tour before we always go by ourselves but after this we will be doing more. Thank you again. Everything was fantastic and what a beautiful country Slovenia is .we will differently recommend this to our friends and family. VIATOR app was very easy to use.
Review provided by Viator
Twosandwichesshort
Jul 13, 2023
Bring a jacket if you’re not used to the cold! - I’d highly recommend this day trip to Postojna and Predjama Castle – it’s an easy way to see the spectacular caves, and a fascinating castle, with a short stop in beautiful Ljubljana thrown in for good measure. Roundabout organised a hotel pick-up for us and our fellow travellers (6 people in total, plus our tour guide Patrick), and by 9am we were on the highway to Slovenia. Patrick kept us entertained throughout the drive, telling us all about Croatia, Slovenia, and Yugoslavia. The 9-seater mini van was comfortable and air conditioned. When we arrived in Ljubljana, Patrick gave us a tour of some of the main sights – the triple bridge, dragon bridge, market square, etc – before giving us an hour to explore on our own. Such a beautiful city. We must return one day! From Ljubljana it was a short trip to the Postojna caves. Patrick had aimed to get us there in time for a 2pm tour. (We all had to buy our own cave tour tickets – they’re not included in the Roundabout tour price.) I must admit, while the caves themselves are spectacular, the tour put on by the cave operator (nothing to do with Patrick or Roundabout) was utter rubbish. Huge herds of tourists, shepherded through at lightning speed, with brusque, disinterested young female tour guides, who marched ahead and didn’t wait for the full group to catch up before describing the points of interest. At least half our group was left to basically trudge through the cave at our own speed, with no guide, until we finally caught up with the group at the end. Pathetic. When we booked our tickets at the Postojna ticket office, the lady warned us the caves would be cold (“less than 10 degrees”) and looked worried when we said we hadn’t brought any jackets or coats (for context, Croatia was in a heatwave that week, 35–40C every day). Two of our group rented wool coats at the entrance (€5 each) but to be honest, I’ve experienced colder walks on my way to work in Liverpool, so your mileage may vary. If you tend to feel the cold, come prepared. It’s only a 5 minute drive from the Postojna caves to Predjama Castle. On the way, Patrick explained some of the history of the castle, and its “Robin Hood” owner, Erasmus of Lueg. When we got there, again, we bought our own tickets to the castle, which included a fancy little mobile dictaphone which you’d scan on entry to each room, to hear a description of what’s there. The castle was utterly fascinating. Patrick gave us about 90 minutes to finish the tour, which was _just_ about enough, and took photos for us all. With the castle visit complete, all that remained was the drive back to Zagreb. Again, Patrick kept us chatting and entertained throughout the long drive. I was particularly impressed to see him including the two ladies in the back seats of the minivan, whose English wasn’t great, so they didn’t feel left out. Very thoughtful, and much better than other tourgides we’ve had in Croatia. Accessibility note: the minivan is not wheelchair accessible, and from what we could tell, neither are the caves or the castle.
Review provided by Tripadvisor
Mihalicj2023
Jul 12, 2023
Castles and Caves - Patrick was our tour guide he was awesome, we felt safe and taken care of. He explained all the features of the area really good. He was very funny too. Patrick really made this experience so much better. I totally recommend this tour group and if you get Patrick that's just a huge bonus. Can wait to tour with them again.
Review provided by Tripadvisor
Holly_p
Jun 4, 2023
Magnificent - Amazing your and an even better tour guide. Stjepan was wonderful! He was organized, arranged tastings for us and was extremely accommodating.
Review provided by Viator
Susana_r
Oct 14, 2022
Private Tour experience with Stjepan. - The tour itself was wonderful. Weather was perfect, sunny day, the car was confortable, but our tour guide (Stjepan) made the difference .. VERY punctual, knowledgeable, caring, funny. He made our experience one of their kind.
Review provided by Viator
Connie
Oct 13, 2022
Amazing tour guide! He shared so much history and facts during the tour which set the stage for the tour. - The guide Stjepan was amazing! Knowledgeable and kind. The tour was wonderful and I’ll travel with him again. The times changed on one of our venues, and he handled it professionally.
Review provided by Tripadvisor
Melinda
Sep 14, 2022
Expert guide - Stefan was a wonderful guide. He was extremely knowledgeable and we found going with a small group of 6 the van could get close to everything we visited. Great mix of professional guidance and exploring by ourselves. Thanks for such a great trip we really appreciate it
Review provided by Tripadvisor
99felipeq
Aug 7, 2023
Nice trip but sloppy coordination - Weather was not perfect due to rain in Ljubljana but our guide did a good job to follow itinerary. Low point of the day was when we arrived to buy tickets for Predjama Castle and Postojna Cave, and we were told the castle was full. We understand that tickets were not included but you would have expected the tour company to have them reserved; or recommended travelers to buy in advance. Sloppy preparation… Also, if there is rain expected in the morning, would have been better to change order of the schedule considering outdoors experience in Ljubljana. At the the end we couldn’t visit the castle, 1 out of 3 main attractions.
Review provided by Tripadvisor
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