
From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour
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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
4.8/5
Based on 8 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour worth booking?
From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour is a 8-hour experience in Zagreb, Croatia, from $260 per person. It scores 65 out of 100 on the Outty Ranking, which we label “Solid Choice”, based on a 4.8/5 rating across 8 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 65 / 100
- Rating
- 4.8/5 (8)
- Duration
- 8 hours
- From
- $260 per person
Tour from Zagreb to Slovenia highlights: Ljubljana, Postojna cave, Predjama castle After we pick you up (your accommodation/city center/airport) our first stop is POSTOJNA cave - the most popular karst cave in the world
What you get
About this experience
Tour from Zagreb to Slovenia highlights: Ljubljana, Postojna cave, Predjama castle After we pick you up (your accommodation/city center/airport) our first stop is POSTOJNA cave - the most popular karst cave in the world. The cave is the world's most captivating cave with magnificent cave formations and diverse fauna. Cave tour includes unforgettable ride on underground TRAIN. After, a few kilometers from Postojna Cave, the Karst world offers an unforgettable experience a World-Famous CAVE CASTLE. The world's largest cave castle, listed as one of the Guinness World Records. As unique castle it ranks among the ten most fascinating castles in the world. We end tour in the capital of Slovenia - charming LJUBLJANA a hidden gem of Europe. As European Green Capital 2016, with a green soul and a sustainable vision of development it offer excellently preserved green spaces, nature and unique architectural appearance and lifestyle.
What's included
Included
- Local professional driver/guide
- Fully Private tour
- Hotel pickup and drop-off
- Guaranteed to skip the long lines
- Transport by private air-conditioned car or minivan
Not included
- Food and drinks
- Gratuities
- Admission fees
What you'll see and do
King Tomislav Square
We usually starts our tours from King Tomislav Square if you didn't request accommodation or other pick up location.
15 minutes here · Admission not included
Predjama Castle
Predjama Castle is located in the vicinity of the Postojna Cave and is the largest cave castle in the world. For over 800 years it has been guarding a rock face, 123 metres high. Mysterious underground tunnels connect it with the cave directly beneath. The castle, which has also been a film location, offered refuge to its legendary owner Erazem Predjamski in the 15th century. This robber knight resisted a siege for over a year in his castle with its incredible appearance and location. Visitors can take a bus between the Postojna Cave and Predjama Castle in order to see both of these attractions.
60 minutes here · Admission not included
Ljubljana Old Town
The picturesque image of the centre of Ljubljana has been marked by different historic periods and most notably by the works of the world-famous architect Jože Plečnik. We will take a walk through the Ljubljana Old Town.
120 minutes here
Postojna Cave
Postojna Cave is the only karst cave with a railway, which was built more than 140 years ago. The unique tourist train will take you to the underground network of karst corridors, galleries and halls. During an hour-and-a-half-long guided tour, you will learn about all of the most important karst features: the largest, 16-metre-high stalagmite known as the Skyscraper, the crystal white symbol of Postojna Cave – the Brilliant, the oldest underground post office in the world and the most famous underground animal – the olm or the human fish.
120 minutes here · Admission not included
Where it starts and ends
Hotel pickup
Pickup is included for all travelers. Pickup begins about 30 minutes before departure.
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- en, es
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 8 travelers per booking
- Operated by
- VIATICA TRAVEL d.o.o.
Know before you go
- Specialized infant seats are available
- Wheelchair accessible
- Infants and small children can ride in a pram or stroller
- Service animals allowed
- Public transportation options are available nearby
- Transportation options are wheelchair accessible
- Suitable for all physical fitness levels
- A current valid passport is required on the day of travel
- Please advise any specific dietary requirements at time of booking
- Vegetarian option is available, please advise at time of booking if required
- Operates in all weather conditions, please dress appropriately
Photos






What travelers are saying
Outty’s summary of the themes that recur across 8 traveler reviews. Written by us, not quoted from reviewers.
The guide
8 mentionsTravelers single out the guide as the reason the experience works.
Food and drink
3 mentionsThe tastings and food stops are a highlight for most reviewers.
Knowledge and storytelling
2 mentionsReviewers describe the commentary as informative rather than scripted.
Traveler reviews
8 verified traveler reviews for From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour. Ratings and reviews provided by Viator and Tripadvisor.
Excellent guide that...
Excellent guide that picked me up at my hotel. She’s very personable, and really plans the entire day around your schedule. Plus knows the good spots for lunch and shopping. I’d suggest bringing your own headphones for the castle portion of the tour.
via Viator
Nice experience overall
This was a lovely tour! Be careful though because someone has written a fake review - you DON'T get to see lake Bled. You have enough time for POSTOJNA caves and the unique experience of the little train (mind you, tickets are not included) and enough time for dinner in Ljubljana! There was some delay in the communication with the agency and also our driver arrived 15-20' late because it was raining and nobody informed us which was worrisome but all's well that ends well.
via Viator
Great day and great company. I would recommend it to anyone travelling to Slovenia
Over all it was a great experience and Milan, our tour guide, definitely contributed to its success.
Response from the operator: Beatriz, thank you for your review. We are happy to be your hosts :) safe travels
via Viator
Just amazing!!!
This tour was amazing!! We had all the time we wanted to explore everything! Our driver was very good, very flexible with our schedule and very helpful. With this tour you can see all the main attractions of Slovenia in one day. Lake bled, predjama castle,the caves and ljubljana !! We surely reccomend this tour !!
Response from the operator: Thank you for your review and your patience and cooperation during our tour :) It was a pleasure. :)
via Viator
Excellence private day tour
This was a great private tour. Our guide was wonderful and the convenience of the private car was well worth the price. It was definitely a full day. We toured Lake Bled, Postonja Caves, and Ljubljana. We received great recommendations at each stop on what to do and where to eat. Would highly recommend!
Response from the operator: Thank you for the kind review :) if you come back, you know where to find us ;)
via Viator
Good to know
- Duration
- 8 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Every day
- Price range
- $260 to $360
- Hotel pickup
- Included for all travelers
- Booked in 30 days
- 3
- Verdict
- Solid Choice
Why this scores 65
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Zagreb.
How much does From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour cost?
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Prices start at $260 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Zagreb usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour take?
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Plan for about 8 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 Zagreb is not rushed.
Is From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour worth it?
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It holds an Outty Ranking of 65 out of 100, which we label "Solid Choice". That score blends traveler sentiment (4.8/5 across 8 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Zagreb, and how flexible the cancellation terms are.
Can I cancel or reschedule From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour?
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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 From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 8-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour?
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Around 3 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 Zagreb 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 Zagreb and add a light layer if any part of the 8-hour experience runs outdoors or after sunset.
Where does From Zagreb: POSTOJNA cave + Predjama castle + LJUBLJANA Day Tour 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 Zagreb 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 Zagreb?
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On Outty we rank every Zagreb experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Communism & Croatian Homeland War Tour, Zagreb Highlights: Old Town, WWII tunnels, Funicular & Tastings, Old Zagreb Private Tour. 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 Zagreb?
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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 Zagreb?
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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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