Postojna cave and Predjama castle Tour from Ljubljana in Ljubljana
Ljubljana, Slovenia

Postojna cave and Predjama castle Tour from Ljubljana

Outty Ranking 79 4.9 · 54 traveler reviews5.5 hoursFrom $55

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September 2026

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Adults

Age 13 and over

2

Children

Age 12 and under

0

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From, per person$55
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Outty Ranking

79/100

Strongly Recommended. Our proprietary evaluation. How we score

Traveler rating

4.9/5

Based on 54 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.

Quick answer

Is Postojna cave and Predjama castle Tour from Ljubljana worth booking?

Postojna cave and Predjama castle Tour from Ljubljana is a 5.5-hour experience in Ljubljana, Slovenia, from $55 per person. It scores 79 out of 100 on the Outty Ranking, which we label “Strongly Recommended, based on a 4.9/5 rating across 54 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.

Outty Ranking
79 / 100
Rating
4.9/5 (54)
Duration
5.5 hours
From
$55 per person

A half-day trip from Ljubljana to Postojna Cave and Predjama Castle is an unforgettable experience for visitors. Postojna Cave is one of the largest karst caves globally, renowned for its impressive stalactite formations

What you get

  • Discount on tickets for Postojna Cave and Predjama Castle (10% off through our tourist agency)
  • Hotel pick up and drop off
  • Professional English speaking guide
  • Transport by air-conditioned minivan

About this experience

A half-day trip from Ljubljana to Postojna Cave and Predjama Castle is an unforgettable experience for visitors. Postojna Cave is one of the largest karst caves globally, renowned for its impressive stalactite formations and unique underground life, including rare cave-dwelling animals. Visitors traverse the underground world by train, emphasizing the spectacular environment. Predjama Castle is built into the rock just at the entrance of the cave system. It is a picturesque castle famous for its unusual location and historical narratives. Built in the 13th century, the castle offers a unique insight into medieval life. With its dramatic setting and rich history, Predjama Castle is a true attraction that captivates visitors. Together, they form an unforgettable combination of natural beauty and cultural heritage. Our guides are best acquainted with the destination and with tips and other assistance they help you discover all the services that the destination has to offer.

What's included

Included

  • Discount on tickets for Postojna Cave and Predjama Castle (10% off through our tourist agency)
  • Hotel pick up and drop off
  • Professional English speaking guide
  • Transport by air-conditioned minivan

Not included

  • Food and drink
  • Gratuities (optional)
  • Postojna Cave and Predjama Castle entrance fee - 41,5 €
  • Postojna Cave entrance (without the Castle) - 29,5 €

What you'll see and do

  1. Postojna Cave

    A journey into the 2 milion old cave with a spectacular interior. Postojna Cave is an impressive cave with global recognisability that has already reached 38 milion visitors in 200 years since it was opened to the public. A wonder happend when the Pivka river threaded its way in underground world and create firstly a cave and later a breathtaking interior with a fantastic web of tunnels, galleries, halls and passages. A picturesque karst phenomena created also an unique natural creations as stalactite, stalagmite, curtains, petrified waterfalls and cave pearls. One of the endless wonders in the cave is also so called »human fish« or »proteus« - a blind animal most notable for its adaptations to a life of complete darkness in its underground habitat.

    120 minutes here · Admission not included

  2. Predjama Castle

    We will visit Predjama Castle, where a self-guided audio tour, available in multiple languages, allows for an informative stroll through the castle. Predjama Castle is known for its dramatic cliffside location, remarkable architecture, and rich medieval history.

    90 minutes here · Admission not included

Where it starts and ends

Hotel pickup

Pickup is included for all travelers. Pickup begins about 15 minutes before departure.

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
Slovenian Wander

Know before you go

  • Service animals allowed
  • Specialized infant seats are available
  • Suitable for all physical fitness levels

Photos

Postojna cave.Postojna cave and Predjama castle Tour from Ljubljana in Ljubljana, photo 3Postojna cave.Spaghetti room in Postojna cave.Predjama castle.Postojna cave

Good to know

Duration
5.5 hours
Free cancellation
Up to 24h before
Minimum age to book
All ages
Availability
Bookable today
Runs on
Every day
Price range
$55 to $72
Hotel pickup
Included for all travelers
Booked in 30 days
19
Verdict
Strongly Recommended

Why this scores 79

The Outty Ranking is a weighted composite. Here is how this experience performed on each component.

Traveler sentiment (30% weight)91
Review evidence (18% weight)59
Booking momentum (14% weight)52
Value for money (12% weight)92
Listing quality (10% weight)100
Local standing (8% weight)61
Booking flexibility (8% weight)100

Postojna cave and Predjama castle Tour from Ljubljana: questions travelers ask

Practical detail on this experience, plus the wider planning questions for Ljubljana.

How much does Postojna cave and Predjama castle Tour from Ljubljana 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 Postojna cave and Predjama castle Tour from Ljubljana take?

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Plan for about 5.5 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 and Predjama castle Tour from Ljubljana worth it?

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It holds an Outty Ranking of 79 out of 100, which we label "Strongly Recommended". That score blends traveler sentiment (4.9/5 across 54 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 and Predjama castle Tour 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 and Predjama castle Tour from Ljubljana suitable for kids and families?

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Yes, all ages are welcome. Families should still weigh the 5.5-hour running time, and strollers are easier on the earlier, quieter departures.

How far in advance should I book Postojna cave and Predjama castle Tour from Ljubljana?

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Around 19 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 5.5-hour experience runs outdoors or after sunset.

Where does Postojna cave and Predjama castle Tour 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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