
From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE
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September 2026
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Who is going?
Adults
Age 13 and over
Children
Age 12 and under
Select a highlighted day to see live departure times and the exact price for your group.
Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
5.0/5
Based on 1 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE worth booking?
From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE is a 6.5-hour experience in Ljubljana, Slovenia, from $55 per person. It scores 61 out of 100 on the Outty Ranking, which we label “Solid Choice”, based on a 5/5 rating across 1 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 61 / 100
- Rating
- 5/5 (1)
- Duration
- 6.5 hours
- From
- $55 per person
Embark on an extraordinary journey through time and nature with our exclusive tour of the breathtaking Postojna Cave and Predjama Castle! Delve into a mesmerizing underground wonderland, crafted over millions of years wi
What you get
- Entrance to Postojna cave
- Entrance fee to Predjama castle and Audio guide
- In-vehicle air conditioning
- Postojna cave Guided tour
- Skip the ticket line
- English Speaking Driver/Guide
About this experience
Embark on an extraordinary journey through time and nature with our exclusive tour of the breathtaking Postojna Cave and Predjama Castle! Delve into a mesmerizing underground wonderland, crafted over millions of years with 21 kilometers of intricate passages and enchanting formations. Glide on an exhilarating underground train ride and be guided by experts through a fairy tale-like realm adorned with sparkling dripstones and majestic caverns. As you emerge into daylight, prepare for the awe-inspiring Predjama Castle, perched dramatically on a 100-meter-high cliff, beckoning you to uncover its rich history, legends, and mysteries. Don't miss this unforgettable adventure amidst Slovenia's lush greenery – book now and make memories to last a lifetime!
What's included
Included
- Entrance to Postojna cave
- Entrance fee to Predjama castle and Audio guide
- In-vehicle air conditioning
- Postojna cave Guided tour
- Skip the ticket line
- English Speaking Driver/Guide
Not included
- Food and drinks
- Your personal expenses
- Tips
What you'll see and do
Postojna Cave
Explore the mesmerizing underground world of Postojna Cave, Slovenia's most renowned natural wonder, boasting stunning limestone formations and an extensive network of caverns. Embark on train to reach underground and then do a guided tour through its illuminated passages, marveling at the intricate stalactites and stalagmites that have been forming for millions of years.
90 minutes here · Admission included
Predjama Castle
Join an audio-guided journey through the legendary Predjama Castle in Slovenia, as you unravel tales of medieval intrigue and architectural marvels nestled within a towering cliff. Let the captivating narratives transport you through centuries of history, from the castle's daring defenses to its noble inhabitants' stories.
60 minutes here · Admission included
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
- Tue, Wed, Sat
- Group size
- Up to 15 travelers per booking
- Operated by
- To do in Slovenia
Know before you go
- Specialized infant seats are available
- Not recommended for travelers with poor cardiovascular health
- Suitable for all physical fitness levels
- Travel time is included in the total duration of the tour
- Not recommended for travelers with Claustrophobia
Photos



Good to know
- Duration
- 6.5 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Tue, Wed, Sat
- Price range
- $55 to $109
- Hotel pickup
- Included for all travelers
- Booked in 30 days
- 0
- Verdict
- Solid Choice
Who runs this experience
Operated by To do in Slovenia, who run 17 experiences we rank across 1 city, with an average Outty Ranking of 72.0 and 1 in the 90+ Club.
See everything To do in Slovenia runsWhy this scores 61
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Ljubljana.
How much does From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE cost?
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Prices start at $55 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 From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE take?
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Plan for about 6.5 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 From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE worth it?
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It holds an Outty Ranking of 61 out of 100, which we label "Solid Choice". That score blends traveler sentiment (5/5 across 1 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 From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE?
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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 Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 6.5-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE?
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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 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 6.5-hour experience runs outdoors or after sunset.
Where does From Koper: Postojna Cave and Predjama Castle ALL INCLUSIVE 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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