




You will discover the underground world of Postojna Cave, the most popular karst cave in the world. The guided tour will consist of a journey by electrical train and will be followed by a walk through beautiful chambers and passages with spectacular drop stones, pillars, limestone curtains and other unforgettable formations. Continue to the idyllic village of Predjama where you will be amazed by the fairy-tale medieval Predjama Castle with its dramatic setting in the gaping mouth of a cavern, halfway up a hillside. Learn about the legend of the famous Erasmus – ‘Slovenian Robin Hood’ and return back to Ljubljana.
Prices change with the date; the lowest is shown.
From the operator’s live schedule on Viator, checked Oct 27.
Visit of Predjama Castle
Visit of Postojna cave
Drop off in Ljubljana
Reviews collected by Viator and Tripadvisor
Excurgo comparison of 413 Viator tours, recalculated daily.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Postojna cave & Predjama castle half day – all tickets included lasts about 5h 30min. The itinerary has 3 stops.
Prices start at $121 per person for this Ljubljana experience, booked through Viator with the price shown before checkout. There is 1 booking option, so the final price depends on the option you choose.
According to the operator’s current schedule, it runs every day, starting at 8:30 AM.
Children aged 2–11 pay from $61, adults from $121. Infants go free.
Yes. Cancel at least 1 day before the start for a full refund. Later cancellations are non-refundable.
The meeting point is By the water fountain in front of the hotel. Hotel pickup is not part of this experience.
The experience is available in EN.
It is a small-group experience with a maximum of 8 participants.
Specialized infant seats are available
Yes, bookings are confirmed instantly.
Travellers rate it 4.6 out of 5 across 120 reviews on Viator and Tripadvisor; it is run by Roundabout Travel.
Reviews collected by Viator and Tripadvisor
| Tour | Duration | Rating | Price | |
|---|---|---|---|---|
Postojna cave & Predjama castle half day – all tickets included | 5h 30min | 4.6 (120) | $121 | |
Postojna Cave and Predjama Castle - Entrance Tickets Included | 6 hours | 4.8 (1,183) | $130 | View |
Highlights of Slovenia - Postojna & Bled (Tickets included) | 11 hours | 4.9 (87) | $193 | View |
Postojna Cave and Predjama Castle Trip including entry tickets | 6–7 hours | 4.4 (7) | $164 | View |
Ljubljana: Postojna cave & Predjama castle small group tour | 5h 30min | 4.8 (174) | $82 | View |
Slovenia in One Day: Small-Group Bled, Postojna Cave & Predjama | 10 hours | 4.9 (948) | $132 | View |
Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana | 5–6 hours | 4.6 (5) | $148 | View |