Ljubljana: Postojna Cave & Predjama Castle Small Group Tour

161 Ratings

Dalmatinova ulica 10

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Explore the breathtaking underground wonders of Postojna Cave and the medieval architecture of Predjama Castle on this small-group tour from Ljubljana. Ride a mini-train deep into the cave and marvel at the ethereal network of stalactites and stalagmites. Discover the fascinating history of Predjama Castle, perched on a cliff high above the Inner…

Duration: 5 hours, 30 minutes

Cancellation: 24 hours

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Highlights

Predjama Castle - Tour of Predjama Castle
Postojna Cave - Tour of Postojna cave

What's Included

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

What's Not Included

Postojna Cave & Predjama Castle combined ticket: from 42 € per person
Postojna cave only: from 29 € per person
Predjama castle only: from 18 € per person

Additional Information

Explore two of Slovenia’s premier attractions in a single afternoon with this small-group, half-day tour departing from Ljubljana. Start your adventure at Predjama Castle, dramatically situated on a cliff overlooking the stunning Inner Carniola region. Discover the castle’s rooms and staircases while learning about its most renowned inhabitant, Erazem of Predjama. Next, proceed to Postojna Cave. Board a mini-train that takes you deep into this renowned cave, where a local guide will lead you through the enchanting network of stalactites, stalagmites, and caverns. The tour is limited to eight participants, ensuring a personalized experience.

Postojna Cave is the most famous cave globally and Slovenia’s top tourist attraction, as well as one of the largest Karst monuments worldwide. It is a must-visit when in Slovenia. Begin the tour with an exciting train ride through one of the world’s most varied cave systems, featuring 21 km of passages, galleries, and magnificent halls, offering a unique underground experience and a wide variety of subterranean creatures, including the renowned human fish (proteus anguinus). In addition to Postojna Cave, you will also have the opportunity to visit Predjama Castle. Our guide will introduce you to this splendid medieval castle, perched high on a vertical cliff in the charming village of Predjama. It is a captivating and romantic sight year-round: in spring and summer, the area is lush with blossoms and flowers; in autumn, it is adorned with the colors of the surrounding forests; and in winter, it is most magical when the landscape is blanketed in snow.

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).

Location

Dalmatinova ulica 10

Dalmatinova ulica

opposite City Hotel

Cancellation Policy

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

Customer Ratings

4.8

(161 Ratings)

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Michael_m

Nov 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.

Review provided by Viator

Jamiec265

Nov 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.

Review provided by Tripadvisor

Werner_w

Oct 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

Review provided by Viator

Kentgwashburn

Sep 19, 2025

This is what I want from a tour company! - 1. Punctual. 2. Clean, comfortable vehicle. 3. Guide Izidor a good, safe driver. That mattered to us. 4. Guide Izidor knowledgeable, fit his Slovenia presentation to group level of interest. 5. Guide Izidor also personable. Felt we got acquainted with an interesting Slovenian. 6. Price seemed fair.

Review provided by Tripadvisor

Melinda_l

Sep 15, 2025

Must do tour! - Jan was a fantastic guide! The caves should be the 8th wonder of the world- truly spectacular! The castle was also very interesting.

Review provided by Viator

Rich_j

Aug 23, 2025

Amazing experience luxury modern van - Very very nice tour bus. Super spacious and luxurious. Tour guide was nice and knowledgeable. Both sites I would consider to be must dos on your trip to Slovenia

Review provided by Viator

Everynameistaken9987

Aug 11, 2025

Excellent tour company and great destinations! - We liked this tour company (Slovenia-Explorer) so much that we did two tours with them. First, Predjama Castle plus Postojna Caverns (one tour) and, second, a tour to Lake Bled (including the castle). They do offer a tour that would hit all three destinations in one day, but that would make for a rather long day. On both tours, the destinations were great. The caverns were probably our favorite, because they were a bit more unique. The drivers on both days were fantastic (we particularly remember Jan, who had the advantage of having studied history in college) and we got a great mix of local color, ancient history, history from the Yugoslavia era to the present, and humor. The vans were clean and modern and the communication was clear and timely, which made everything simple and easy. The drives are also not too long—about 45 minutes each way. Great tours and a great tour company!

Review provided by Tripadvisor

Neil_h

Jul 17, 2025

Great day trip from Ljubljana - This far exceeded our expectations. Although this wasn't a private tour, this van was comfortable and our guide was knowledgeable and personable. It seemed like a private tour and we made quick friends of the other people. The cave and particularly the train was much more fun and impressive than I would have imagined. The castle was also really unique given the setting into the mountain. I would highly recommend this tour.

Review provided by Viator

Debra_d

Jul 15, 2025

Both Postojna Cave and... - Both Postojna Cave and Predjama Castle were amazing-I’m so glad I visited both! I also appreciated the guide’s descriptions along the way.

Review provided by Viator

Dibi76

Jan 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.

Review provided by Tripadvisor

Check Availability

From $78

up to 8 guests

1 - Adult