Tours/Ljubljana/Ljubljana: Postojna cave & Predjama castle small group tour
Viator · group up to 8 pax

Ljubljana: Postojna cave & Predjama castle small group tour

4.8(167)Ljubljana1 hour
VIATOR4.8(68)TRIPADVISOR4.9(99)

Description

Visit two of Slovenia’s top attractions in one afternoon on this small-group, half-day tour from Ljubljana. Begin at Predjama Castle, perched on a cliff high above the beautiful Inner Carniola region. Explore the chambers and stairwells and learn about the castle’s most famous resident, Erazem of Predjama. Then, continue to Postojna Cave. Ride a mini-train deep into the famous cave and tour the ethereal network of stalactites, stalagmites and caverns with a local guide. Numbers limited to eight people, ensuring a personalized experience.  Postojna Cave 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 and it is a must-see attraction when visiting Slovenia. You will start the tour with a unique and adventurous ride with a special train in one of the most diverse cave systems in the world, with 21 km of passages, galleries and magnificent halls, which offer an unparalleled experience of the underground world and a large diversity of underground animals – including the world-famous human fish (proteus anguinus). Beside Postojna Cave you will also have the chance to visit Predjama Castle. Our guide will show you this magnificent medieval castle perched high up in a vertical cliff in the idyllic village of Predjama. It is an interesting and romantic sight throughout the year: in the spring and summer its surroundings are abundant with blossoms and flowers, in the autumn it is clad in the colours of surrounding forests and it is at its most enchanting in the winter when the surrounding area is covered in snow.

Tour Options

Small group tour - max 8 people in the van

Itinerary

Admission not included60 min

Tour of Predjama Castle

Admission not included90 min

Tour of Postojna cave

Highlights

Central Ljubljana meeting point
Comfortable transport by air-conditioned minivan
Professional English speaking guide

What's included

Included
Central Ljubljana meeting point
Comfortable transport by air-conditioned minivan
Professional English speaking guide
Not included
Postojna Cave & Predjama Castle combined ticket: from 45 € per person (dynamic prices)
Postojna cave only: from 33 € per person

Traveller Ratings

4.8
167 reviews
5
144
4
18
3
5
2
0
1
0

Important Information

  • Travelers should have at least a moderate level of physical fitness
  • 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.
  • Not wheelchair accessible.
  • Please keep in mind that there are quite a few stairs at the Predjama castle, but you would do that in a fairly slow pace.
  • Small group tour - up to 8 people per van.
  • Warm and comfortable clothes and footwear are essential to visit the Postojna cave (temperature in the cave is 9°C / 48 Fahrenheit).

Reviews(167)

D
D4734MJmichaelac
June 2, 2026
Not much included for the cost, but still worth it!

While this is essentially paying for a ride to the caves and castle, it is still worth booking (the tickets for the actual caves and castle are NOT included, and the driver/guide does NOT come with you into the caves or castle). The van was very comfortable and our driver was knowledgeable (gave us information during the drive and outside of the castle), helpful, and well-organized. Again, the caves are so incredible I still think this is worth booking if you want to travel comfortably.

Operator response

Thank you, Michaela. We are glad the day was worth it, and that the comfortable van and our guide made it easy and well-organised. For anyone weighing the cost: what's always included is the guided day itself, a licensed local guide-driver, and the comfortable van, a small group of up to 8 rather than a big coach. Groups are often smaller too, and we run the day even for two guests rather than cancel. The cave and castle admissions are kept separate and optional, so you only pay for the stops you choose, with prices shared upfront. One thing worth knowing: inside Postojna Cave only the cave's own specialised guides are allowed to lead, so ours shares the background on the drive and waits outside, ready with more once you're out. That also keeps an extra entry ticket off your bill. Thanks for laying it out so clearly; that honest detail helps the next traveller decide.

J
Jonathan_H
May 28, 2026
Prompt pickup. Friendly,...

Prompt pickup. Friendly, organised and informative guide. The caves are particularly touristy but are well organised and therefore still worthwhile. some more elderly tourists struggled a little with the walk at the caves and the steps at the castle. We found the castle, particularly interesting but at peak season, I would imagine it is chaotically busy.

Operator response

Thank you, and we are really glad the cave made such an impression on you, it is genuinely one of the most remarkable anywhere. We keep the admissions and the boat optional on purpose, so each guest can tailor the day and only pay for the stops they choose, and we share the prices upfront so there are no surprises. We hope to welcome you back.

S
Stefan_N
May 19, 2026
Luka was a knowledgeable...

Luka was a knowledgeable guide with lots of interesting facts to share. The caves were fascinating, and the castle breathtaking.

Operator response

Thank you for your lovely review!

C
canjapam
May 15, 2026
Perfect 1/2 Day

We were excited to see Predjama Castle and the Postonja Cafes but we didn’t want to take up our entire day doing so. This was perfect. 8:20 pick up and 2pm drop off. Jan was an excellent guide and made everything seamless.

Operator response

Thank you for your lovely review! We are really happy to hear that the half-day format was the perfect fit for you. And yes! We are proud to have such amazing guides sharing our beautiful country with you!😊

R
Richard_B
May 12, 2026
Great experience. The...

Great experience. The caves are stunning. The castle is truly one of a kind. Unique. Our driver/guide is wonderful.

Operator response

Thank you so much, Richard! 🙏

S
stefanov231
April 10, 2026
Fantastic.

Exciting experience and immersed in. Really great caves. Recommended.

D
DiBi76
January 1, 2026
Nice visit

It is a very interesting cave, the largest in Europe. Part of the visit is carried out with a train, followed by a pleasant walk. Beautiful rooms, the magnificence of nature. In the surroundings you can make a pleasant stop to eat.

M
Michael_M
November 15, 2025
Great half day adventure...

Great half day adventure with an astonishing cave and an equally impressive castle IN a cave. Nina both drove and lead the group with aplomb. It's a great way to get out of the city and see some things (for me at least) not easily seen at home.

J
jamiec265
November 15, 2025
Postojna Cave & Predjama Castle … a great experience

A fantastic day at the Postojna caves and Prediama Castle. The minibus was very comfortable and our guide, Thea, was extremely professional, knowledgeable and a lovely person. The tour was great value and a great use of our precious time in Slovenia. I would recommend this tour to all.

1 people found this helpful
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Werner_W
October 26, 2025
Amaizing

It is a Must to go there, we have Seen many Caves, but this is by far the most Impressive cave and well organised

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