
Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana
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September 2026
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Adults
Age 13 and over
Children
Age 12 and under
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Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
4.6/5
Based on 5 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana worth booking?
Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana is a 5-hour experience in Ljubljana, Slovenia, from $65 per person. It scores 62 out of 100 on the Outty Ranking, which we label “Solid Choice”, based on a 4.6/5 rating across 5 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 62 / 100
- Rating
- 4.6/5 (5)
- Duration
- 5 hours
- From
- $65 per person
Gems cut out of the rock One cannot visit Slovenia without visiting Postojna Cave, the largest Karst cave in Slovenia with as much as 24 km of fantastic grid of tunnels, galleries and halls. Starting with electric train
What you get
- Postojna Cave entrance fee and guided tour
- Transport
- Predjama Castle entrance fee and audio guide
- English speaking chauffeur guide
About this experience
Gems cut out of the rock One cannot visit Slovenia without visiting Postojna Cave, the largest Karst cave in Slovenia with as much as 24 km of fantastic grid of tunnels, galleries and halls. Starting with electric train taking you inside, like no where else in the World, then proceed for a walking tour. Not only England, but Slovenia too has its own Robin Hood: Erazem of Predjama Castle was a headstrong and rebellious “robber baron” who stole from the rich to give to the poor. Visit impregnable Predjama Castle that reigns perched high up a vertical cliff.
What's included
Included
- Postojna Cave entrance fee and guided tour
- Transport
- Predjama Castle entrance fee and audio guide
- English speaking chauffeur guide
Not included
- Gratuities
What you'll see and do
Ljubljana
Small group approach with carefully planned time, where experienced local tour operator’s chauffeur guide will collect you at designated location for an informative hourly ride to Postojna to start your unique karst experience.
Pass by without stopping
Postojna Cave
The Pivka river has been carving the Postojna Cave for 2 million years. The water level has changed over time and created a beautiful "multi-level" underground world filled with stalactites, stalagmites, columns, curtains and other gorgeous shapes was gradually created as the water was leaving layers of limestone behind. The first visitors supposedly came to the cave as early as the 13th century, but the most beautiful parts of the cave were discovered in 1818. You’ll enter the cave by train. The train ride takes about 10 minutes, and then you’ll continue on foot with a guided tour. Stroll under the needle-thin transparent tubes hanging from the ceiling in Hall of Tubes. From under the Russian Bridge you will reach The Concert Hall from where you can see the amazing white Brilliant – a truly breathtaking sight. Despite dark, around 100 animal species live in the cave! The main attraction is, of course, the proteus, which was at first mistaken for a baby dragon.
120 minutes here · Admission included
Predjama Castle
Before visit, take a break on the terrace of the country inn in front of the defiant, mysterious Predjama Castle built in a rock and enjoy its stunning views. The castle is built as an impregnable redoubt, placed in the gaping mouth of a cavern halfway up a 123 m cliff. The castle holds great features – holes in the ceiling of the entrance tower for pouring boiling oil on intruders, deep and dank dungeons, and an eerie hiding place at the top called Erazem's Nook. After a nice half day experience we will return back to Ljubljana. Drop off will be at same location as pick up.
60 minutes here · Admission included
Where it starts and ends
Meeting point
Ljubljana
Hotel pickup
Pickup is available for selected locations.
Ends at
Returns to the starting point
Options you can book
SIHD002, Afternoon Tour
Postojna Cave & Castle @13:30 Pickup included
SIHD002, 2025 Morning Tour
Postojna Cave & Castle @8:30
SIHD002, 2025 Morning Tour
Postojna Cave & Castle @7:30 Pickup included
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- en
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 15 travelers per booking
- Operated by
- ljubljana.today
Know before you go
- Infants are required to sit on an adult’s lap
- Suitable for all physical fitness levels
- At the time of booking please provide a full international mobile telephone number or accommodation telephone number where you can be reached before and on your travel date.
- Appropriate footwear required; no to flip flops!
- Dress warm, constant temperature in caves is 10-12°C
- We are communicating with our clients exclusively through the point of booking, in this case TripAdvisor Interface
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Good to know
- Duration
- 5 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Every day
- Price range
- $65 to $175
- Hotel pickup
- Available for selected locations
- Booked in 30 days
- 2
- Verdict
- Solid Choice
Why this scores 62
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Ljubljana.
How much does Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana cost?
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Prices start at $65 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Ljubljana usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana take?
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Plan for about 5 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Ljubljana is not rushed.
Is Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana worth it?
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It holds an Outty Ranking of 62 out of 100, which we label "Solid Choice". That score blends traveler sentiment (4.6/5 across 5 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Ljubljana, and how flexible the cancellation terms are.
Can I cancel or reschedule Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana?
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Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 5-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana?
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Around 2 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Ljubljana can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
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Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Ljubljana and add a light layer if any part of the 5-hour experience runs outdoors or after sunset.
Where does Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana start and how do I get there?
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The exact meeting point and directions are on your voucher once you book, and they sit in central Ljubljana within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Ljubljana?
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On Outty we rank every Ljubljana experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Slovenia in One Day: Small-Group Bled, Postojna Cave & Predjama, Postojna Cave and Predjama Castle - Entrance Tickets Included, Lake Bled and Bohinj with Savica waterfall included. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Ljubljana?
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Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Ljubljana?
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Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
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Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
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