
Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb
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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.
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Quick answer
Is Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb worth booking?
Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb is a 9-hour experience in Zagreb, Croatia, from $267 per person. It scores 56 out of 100 on the Outty Ranking, which we label “Worth a Look”. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 56 / 100
- Rating
- Not yet rated
- Duration
- 9 hours
- From
- $267 per person
Embark on an unforgettable day trip from Zagreb to explore two of Slovenia's most iconic landmarks: the stunning Postojna Cave and the majestic Predjama Castle. Journey through the magical underground world of Postojna C
What you get
About this experience
Embark on an unforgettable day trip from Zagreb to explore two of Slovenia's most iconic landmarks: the stunning Postojna Cave and the majestic Predjama Castle. Journey through the magical underground world of Postojna Cave on a thrilling electric train ride, followed by a visit to Predjama Castle, a dramatic fortress built into a cliffside. With the added charm of a stop in Ljubljana, Slovenia’s picturesque capital, this tour offers a perfect mix of natural wonders, medieval history, and vibrant city culture – a unique experience you won't want to miss! Book now for an adventure that combines breathtaking sights and rich heritage in one unforgettable day.
What's included
Included
- In-vehicle air conditioning
- Private Transportation ( MPV for 1-4 persons, van for 5-8 persons)
- Surcharges on fuel
- Private English-speaking guide
- Parking fees
Not included
- Entrance fees
- Gratuities
What you'll see and do
Postojna Cave
A visit to Postojna Cave offers a mesmerizing journey through a stunning underground world, filled with magnificent stalactites, stalagmites, and vast chambers. The electric train ride and guided tour make exploring this 24,000-meter-long cave system both exciting and educational.
120 minutes here · Admission not included
Predjama Castle
Predjama Castle is an awe-inspiring fortress built into a towering cliff, offering a fascinating glimpse into medieval history and legends. Its unique location and hidden tunnels make it a captivating destination for history lovers and adventure seekers alike.
60 minutes here · Admission not included
Ljubljana
A visit to Ljubljana, Slovenia's charming capital, offers a blend of vibrant culture, picturesque architecture, and a relaxed atmosphere. The city's Old Town, with its colorful buildings, scenic bridges, and Ljubljana Castle perched on a hill, invites leisurely exploration. Whether strolling along the Ljubljanica River or enjoying a café in Prešeren Square, Ljubljana exudes a welcoming, friendly vibe.
120 minutes here
Where it starts and ends
Hotel pickup
Pickup is included for all travelers.
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 8 travelers per booking
- Operated by
- Mapping Croatia
Know before you go
- Infants and small children can ride in a pram or stroller
- Public transportation options are available nearby
- Specialized infant seats are available
- Suitable for all physical fitness levels
Photos






Good to know
- Duration
- 9 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Every day
- Price range
- $267 to $410
- Hotel pickup
- Included for all travelers
- Booked in 30 days
- 0
- Verdict
- Worth a Look
Why this scores 56
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Zagreb.
How much does Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb cost?
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Prices start at $267 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 Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb take?
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Plan for about 9 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 Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb worth it?
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It holds an Outty Ranking of 56 out of 100, which we label "Worth a Look". That score blends traveler sentiment (0/5 across 0 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 Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb?
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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, Predjama Castle and Ljubljana Day Trip from Zagreb suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 9-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb?
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Around 0 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 9-hour experience runs outdoors or after sunset.
Where does Postojna Cave, Predjama Castle and Ljubljana Day Trip from Zagreb 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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