Ljubljana: Postojna cave & Predjama castle small group tour in Ljubljana
Ljubljana, Slovenia

Ljubljana: Postojna cave & Predjama castle small group tour

Outty Ranking 83 4.8 · 168 traveler reviews5.5 hoursFrom $35
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Outty Ranking

83/100

Exceptional. Our proprietary evaluation. How we score

Traveler rating

4.8/5

Based on 168 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.

Quick answer

Is Ljubljana: Postojna cave & Predjama castle small group tour worth booking?

Ljubljana: Postojna cave & Predjama castle small group tour is a 5.5-hour experience in Ljubljana, Slovenia, from $35 per person. It scores 83 out of 100 on the Outty Ranking, which we label “Exceptional, based on a 4.8/5 rating across 168 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.

Outty Ranking
83 / 100
Rating
4.8/5 (168)
Duration
5.5 hours
From
$35 per person

Visit two of Slovenia’s top attractions in one afternoon on this small-group, half-day tour from Ljubljana. Begin at Predjama Castle, perched on a cliff high above the beautiful Inner Carniola region. Explore the chamber

What you get

  • Central Ljubljana meeting point
  • Comfortable transport by air-conditioned minivan
  • Professional English speaking guide

About this experience

Visit two of Slovenia’s top attractions in one afternoon on this small-group, half-day tour from Ljubljana. Begin at Predjama Castle, perched on a cliff high above the beautiful Inner Carniola region. Explore the chambers and stairwells and learn about the castle’s most famous resident, Erazem of Predjama. Then, continue to Postojna Cave. Ride a mini-train deep into the famous cave and tour the ethereal network of stalactites, stalagmites and caverns with a local guide. Numbers limited to eight people, ensuring a personalized experience.  Postojna Cave is the best-known cave in the world. It is also the greatest tourist attraction in Slovenia and one of the world's largest Karst monuments and it is a must-see attraction when visiting Slovenia. You will start the tour with a unique and adventurous ride with a special train in one of the most diverse cave systems in the world, with 21 km of passages, galleries and magnificent halls, which offer an unparalleled experience of the underground world and a large diversity of underground animals – including the world-famous human fish (proteus anguinus). Beside Postojna Cave you will also have the chance to visit Predjama Castle. Our guide will show you this magnificent medieval castle perched high up in a vertical cliff in the idyllic village of Predjama. It is an interesting and romantic sight throughout the year: in the spring and summer its surroundings are abundant with blossoms and flowers, in the autumn it is clad in the colours of surrounding forests and it is at its most enchanting in the winter when the surrounding area is covered in snow.

What's included

Included

  • Central Ljubljana meeting point
  • Comfortable transport by air-conditioned minivan
  • Professional English speaking guide

Not included

  • Postojna Cave & Predjama Castle combined ticket: from 45 € per person (dynamic prices)
  • Postojna cave only: from 33 € per person

What you'll see and do

  1. Predjama Castle

    Tour of Predjama Castle

    60 minutes here · Admission not included

  2. Postojna Cave

    Tour of Postojna cave

    90 minutes here · Admission not included

Where it starts and ends

Meeting point

Ljubljana

opposite City Hotel

Hotel pickup

No pickup: everyone meets at the start point.

Ends at

opposite City Hotel

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
Gray Line Slovenia I Slovenia Explorer

Know before you go

  • Travelers should have at least a moderate level of physical fitness
  • Minimum numbers apply. There is a possibility of cancellation after confirmation if there are not enough passengers to meet requirements. In the event of this occurring, you will be offered an alternative or full refund.
  • Not wheelchair accessible.
  • Please keep in mind that there are quite a few stairs at the Predjama castle, but you would do that in a fairly slow pace.
  • Small group tour - up to 8 people per van.
  • Warm and comfortable clothes and footwear are essential to visit the Postojna cave (temperature in the cave is 9°C / 48 Fahrenheit).

Photos

Predjama Castle and Postojna Cave Half-Day Tour from LjubljanaVisit the magnificent Postojna Cave on this half-day tourLjubljana: Postojna cave & Predjama castle small group tour in Ljubljana, photo 4Ljubljana: Postojna cave & Predjama castle small group tour in Ljubljana, photo 5Ljubljana: Postojna cave & Predjama castle small group tour in Ljubljana, photo 6

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
$35 to $88
Hotel pickup
No pickup, meet at start point
Booked in 30 days
59
Verdict
Exceptional

Who runs this experience

Operated by Gray Line Slovenia I Slovenia Explorer, who run 9 experiences we rank across 1 city, with an average Outty Ranking of 73.4 and 1 in the 90+ Club.

See everything Gray Line Slovenia I Slovenia Explorer runs

Why this scores 83

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

Traveler sentiment (30% weight)86
Review evidence (18% weight)75
Booking momentum (14% weight)71
Value for money (12% weight)100
Listing quality (10% weight)100
Local standing (8% weight)52
Booking flexibility (8% weight)100

Ljubljana: Postojna cave & Predjama castle small group tour: questions travelers ask

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

How much does Ljubljana: Postojna cave & Predjama castle small group tour cost?

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Prices start at $35 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 Ljubljana: Postojna cave & Predjama castle small group tour 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 Ljubljana: Postojna cave & Predjama castle small group tour worth it?

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It holds an Outty Ranking of 83 out of 100, which we label "Exceptional". That score blends traveler sentiment (4.8/5 across 168 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 Ljubljana: Postojna cave & Predjama castle small group 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 Ljubljana: Postojna cave & Predjama castle small group tour 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 Ljubljana: Postojna cave & Predjama castle small group tour?

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Around 59 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 Ljubljana: Postojna cave & Predjama castle small group 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 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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