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5 giờ
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Visit Postojna Cave, the best-known cave in the world, and The Predjama Castle, the only preserved cave castle in Europe.
Infants are required to sit on an adult’s lap
Specialized infant seats are available
Service animals allowed
Public transportation options are available nearby
Infants and small children can ride in a pram or stroller
Transportation options are wheelchair accessible
Wheelchair accessible
Travelers should have at least a moderate level of physical fitness
Cruise Passengers must advise supplier as soon as possible: ship name, arrival time and departure 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
The tour can be booked in English, Italian, or German. Occasionally, the escort guide in the vehicle may speak only English, depending on availability, however, the guided visits in the cave and castle will be conducted in the booked language.
Trieste
Your guide will pick you up at the agreed starting point in Trieste - hotel, cruise terminal, train station etc. (please contact us after the booking so the appropriate arrangements can be made).
Postojna Cave
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).
Pickup and drop-off
Driver/guide
Transportation
Insurance
Food and drinks
Gratuities
For a full refund, cancel at least 24 hours before the scheduled departure time.
47 đánh giá
Tổng số đánh giá và xếp hạng từ Viator & TripAdvisor
Scott S,7 thg 6, 2026
- Đánh giá từ Viator
I had an absolutely unforgettable experience visiting Postojna Cave in Slovenia. The cave itself is breathtaking, with massive stalactites and hidden chambers. The highlight was definitely the train tour—such a front-row seat to the cave’s magic. We did book a private small group tour, but unfortunately, it ended up being a large bus with a lot of cruise passengers, which was a bit disappointing. Still, the cave itself and the guide were phenomenal—it’s a must-see in Slovenia!
Silvia C,1 thg 6, 2026
- Đánh giá từ Viator
It is worth it. You visit two spectacular sites with enough time to see everything. There is no guide in Spanish, but with an Italian guide and the audio guides in Spanish, it is sufficient to understand what you are visiting.
Michael R,29 thg 5, 2026
- Đánh giá từ Viator
Good tour, operator was friendly and knowledgeable. Trip to the caves was comfortable and the return was prompt.
Donald D,27 thg 5, 2026
- Đánh giá từ Viator
What can I say? Postojna Cave was an awesome experience, massive in size and truly spectacular. History of Predjama Castle was interesting. Tour hostess and driver were great
Wanderer282441,27 thg 5, 2026
- Đánh giá từ Tripadvisor
Mia our guide was wonderful. We enjoyed the small group. The cave had alot of walking and steep in some places. Be prepared for that.
Janet T,26 thg 5, 2026
- Đánh giá từ Viator
We were lucky to get there early and missed the crowd. It is worth a visit. A must do. The train took us part of the way and the other part is a walking tour. The tour guide is amazing, not rushing and making sure there is time for the slower people (like us) to catch up. The cave is well lite and beautiful, off course with some imagination along your walk. She provided the history at each stop. She make sure we are safe as there is no stairs. We had a great time. A trip you would not want to missed. Highly recommended. P.s. bring a spring jacket. The temp remains at 10 degrees c.
Deborah P,15 thg 5, 2026
- Đánh giá từ Viator
The caves are spectacular. I’ve never seen anything like it before. Slovenia is beautiful. So clean and pristine and green!
Debbie J,15 thg 5, 2026
- Đánh giá từ Viator
Koper Trips was wonderful to work with!! The tour company, as well as our guide, were most receptive and responsive to our needs! Many thanks to them. I would certainly recommend booking with Koper Trips! The experience was also so worthwhile! We were met right by our cruise port in Trieste, Italy and taken by bus on a scenic ride to Slovenia to see The Postojna Caves and Predjama Castle. The caves were breathtaking! First, we embarked on a train ride and then walked through passages, showcasing gorgeous natural formations of stalagmites and stalactites. The castle is a medieval fortress built into a mountain cliff. With its amazing architecture, it is hard to tell where the cave and castle combine. This trip offers a unique experience and is a must do!









Pamela T,9 thg 5, 2026
- Đánh giá từ Viator
The castle and cave were amazing. I thought I booked an 8:00 start, but it was 9:00. It said 5 hours, but it was 6. The bus was very nice.
Brian H,9 thg 3, 2026
- Đánh giá từ Viator
The entire experience was amazing, our driver was knowledgeable and friendly, but the views and the castle were enough of a once of a lifetime experience, thanks again to all in the tour!
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