Gray Line Slovenia · Ljubljana
Gray Line Slovenia drives up to eight people in a minivan from central Ljubljana to Predjama Castle and Postojna Cave, with a local guide at the wheel. It has the lowest fare on this site because the entrance tickets are not in it: you buy them on the day.
Meet opposite the City Hotel on Dalmatinova ulica at 8:20 AM. Gray Line Slovenia, which also trades as Slovenia Explorer, fills a minivan with eight people at most and heads first to Predjama Castle (about an hour), then to Postojna Cave (about an hour and a half). The driver is your guide, and guests praise the commentary on the road.
Now the money. The $78 covers the van and the guide. The entrance tickets are extra: the listing quotes the combined cave and castle ticket from EUR 45 per person with dynamic prices, or the cave alone from EUR 33, and the park's own ticket page showed EUR 49.90 for an adult combo in October 2026. Add that and the day costs about the same as the tickets-included trip. What you gain is the small group and the freedom to choose: cave only, both, or the cave plus the Vivarium.
Inside, the park's guides lead the cave tour and an app or audio guide covers the castle. The listing calls for moderate fitness and warns that the castle has quite a few stairs, taken at a slow pace.
Dalmatinova ulica 10, central Ljubljana. Board the air-conditioned minivan.
Through the karst countryside to the castle in the cliff.
Buy your ticket and climb the staircases through the rooms and the armoury.
The electric train runs into the cave, then a walk past the stalagmites and the olm tanks at the end with the park's guide.
The tour ends at the meeting point.
★★★★★A fantastic trip to the cave and castle. The cave is very crowded but everyone moves along at a good pace. We loved the castle and the whole setting of it is spectacular. Our guide Andreas was fantastic- very informative and knowledgeable and we learnt so much about Slovenia.
★★★★★This far exceeded our expectations. Although this wasn't a private tour, this van was comfortable and our guide was knowledgeable and personable. [...] The cave and particularly the train was much more fun and impressive than I would have imagined.
★★★★★Great tour. Cave is amazing. Castle is unique. Van was comfortable and the guide was very helpful . We had a great time. Very well organized. We had time to visit both places without rushing.
★★★★★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.
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No. The fare covers the minivan and the guide. The listing quotes the combined cave and castle ticket from EUR 45 per person (dynamic prices) and the cave alone from EUR 33. You buy them on the day.
The $78 fare plus your ticket. With the park's adult combo at EUR 49.90 (October 2026), the total lands close to the tours that include tickets. The small group is the reason to pick this one.
Opposite the City Hotel, Dalmatinova ulica 10, Ljubljana, at 8:20 AM. The tour ends back there.
Eight people at most, in an air-conditioned minivan. Gray Line runs no big coaches on this trip.
Ready to book
A seat in a minivan of up to eight with a local guide; the cave and castle tickets are bought on the day.
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