Postojna Cave and Predjama Castle - Entrance Tickets Included
Overview
Available languages
6 hours
Mobile ticket
On this day we take you to the biggest and worldwide known Slovenian cave system - the Postojna caves. Amazing two million years old and 21 km long system of underground caves is one of the most easily accessible networks of underground caves in the world. First, you will experience the ride by electric train, after that, a guided walk will follow through a series of cave halls with drop stones, pillars, and translucent curtains that create unforgettable impressions. The underworld system is home to the mysterious, unique, and rare amphibian Proteus Anguinus, or "baby dragon" as it is popularly called here.
Back in the daylight, the trip will continue towards the astonishing castle of the robber knight Erasmus. For centuries dramatically hanging in over a 100-meter-high vertical cliff, it's waiting for you to enter and discover its secrets, legends, and myths.
Driving through the green scenery, we return to Ljubljana.
Additional Info
Public transportation options are available nearby
Specialized infant seats are available
Suitable for all physical fitness levels
There is a constant temperature of 10°C (50°F) in the caves, dress properly, and wear comfortable shoes (flipflops are not recommended).
The minimum number of participants must 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 date/tour or full refund.
In case you fail to provide us with a desired meeting point up until 24h before departure, your meeting point will be the City hotel (Dalmatinova 15, 1000 Ljubljana)
Child rate applies only when sharing with 2 paying adults.
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
What To Expect
Postojna Cave
Postojna cave entrance fee
Predjama Castle
Predjama Castle entrance fee
What‘s Included
Entrance to Postojna cave
Pick up and drop of service in central Ljubljana
Entrance to Predjama Castle
Audio guide in Predjama Castle
Skip the line service
Air-conditioned vehicle
English Speaking Driver/Guide
Food and drinks
Your personal expenses
Pickup points
Intercontinental Ljubljana By IHG
Slovenska cesta 59 Ljubljana Slovenia
City Hotel Ljubljana
Dalmatinova ulica 15, Ljubljana Slovenia
Options
SHARED TOUR
Book your Shared Group Tour to Postojna Caves and Predjama Castle from Ljubljana
Pickup included
Reviews
927 reviews
Total reviews and rating from Viator & Tripadvisor
Luca, our guide was...
Rebecca S,,Dec 16, 2025
- Review from Viator
5.00Luca, our guide was really informative and gave us an excellent commentary on the way to the caves. The trip to the caves was amazing and a must see. The castle was fascinating and I totally recommend a visit
A must do
Spud99,,Dec 8, 2025
- Review from Tripadvisor
5.00This is a must trip for every visitor to Slovenia. I am so lucky that it is the second visit I have had (first in 2012) and it is still exciting and a great wonder. I loved the Christmas tree in the great hall! Our guide was great and provided a history of the area, caves and castle.
We had a great time on...
MeiLun M,,Dec 7, 2025
- Review from Viator
5.00We had a great time on this small tour group. The valley was beautiful, the Tibor is one of the best tour guides out there - he is funny, engaging, knowledgeable, and shared so much of Lju's history with us. Kranjska gora valley was a bit less interesting, can consider switching this part out for something else
Beautiful places, impeccable organization
AlessiaGaspa,,Dec 6, 2025
- Review from Tripadvisor
5.00Very simple organization that covered every aspect, nice driver, not too large group and despite being guided tour we had the right independence. Wonderful location, highly recommended trip
Excellent experience
C238LJhugol,,Dec 4, 2025
- Review from Tripadvisor
5.00A very good experience. Nice guide and driver (a woman whose name I don't remember). Excellent sightseeing. Very good explanations.
Fabulous day out from Ljubljana
999MelonH,,Dec 3, 2025
- Review from Tripadvisor
5.00On our family short (adult) family break to Ljubljana, we booked this trip to Postojna Cave and castle. Our driver (so sorry I think it was Tor?) picked us up promptly at 08.00. There were 8 of us on the trip, and with encouragement we quickly introduced ourselves and settled down for our hour trip to the caves. Our guide provided a fascinating overview of Slovenia’s history during the drive. The caves are an incredible experience - an absolute “must do”. As a word of caution though, there’s a lot of walking with steep slopes - no good for those unfit or with mobility problems. We were in a larger group but the guide was great and we all felt that this activity was an absolute highlight. Moving on to the castle: again well worth a visit. Built into the cliff, you have an audio guide to take you from room to room. It’s a great place to visit. There are a lot of steps here too. I thoroughly recommend this trip from Ljubljana.
Caves of Postunia
Marina M,,Dec 1, 2025
- Review from Viator
3.00Very nice both caves that the castle in the fortress, very particular and well maintained!................
Recommend half day tour
Rosie G,,Nov 30, 2025
- Review from Viator
5.00Fabulous half day tour, lovely group, excellent tour guide Klemen. Good balance of activities, good knowledge from guide.
It’s a convenient way to...
Stacy M,,Nov 28, 2025
- Review from Viator
5.00It’s a convenient way to get to the cave and castle, and our guide was really knowledgeable and we learned a lot about Slovenia and the cave on the way there and back.
Worth a visit
Susan Z,,Nov 27, 2025
- Review from Viator
5.00I went in November and it was chilly and rainy. Dress warmly and consider boots (depending on the weather) since there is water in the floor on both the cave and the castle.
-10% off
From €98.10Was €109.00
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Operated by To do in Slovenia