Postojna Cave and Predjama Castle Trip including entry tickets in Ljubljana, Slovenia
Ljubljana, Slovenia

Postojna Cave and Predjama Castle Trip including entry tickets

Outty Ranking 61 4.4 · 7 traveler reviews6 hoursFrom $163
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Outty Ranking

61/100

Solid Choice. Our proprietary evaluation. How we score

Traveler rating

4.4/5

Based on 7 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.

Quick answer

Is Postojna Cave and Predjama Castle Trip including entry tickets worth booking?

Postojna Cave and Predjama Castle Trip including entry tickets is a 6-hour experience in Ljubljana, Slovenia, from $163 per person. It scores 61 out of 100 on the Outty Ranking, which we label “Solid Choice”, based on a 4.4/5 rating across 7 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.

Outty Ranking
61 / 100
Rating
4.4/5 (7)
Duration
6 hours
From
$163 per person

Join us on a Half-Day Trip to Postojna cave and Predjama castle from Bled or Ljubljana! The mystic underground of Postojna Cave number 1. touristic attraction in Slovenia and most prominent karst cave in the world, with the Predjama Castle will leave you speechless. Postojna cave is a jewel of Slovenian Karst being the most renowned cave and one of the greatest karst monuments in the world. To round it up we will finish in Predjama castle which is listed in Guinness World records as the largest castle in the cave.

What you get

    About this experience

    Join us on a Half-Day Trip to Postojna cave and Predjama castle from Bled or Ljubljana! The mystic underground of Postojna Cave number 1. touristic attraction in Slovenia and most prominent karst cave in the world, with the Predjama Castle will leave you speechless. Postojna cave is a jewel of Slovenian Karst being the most renowned cave and one of the greatest karst monuments in the world. To round it up we will finish in Predjama castle which is listed in Guinness World records as the largest castle in the cave.

    What's included

    Included

    • Transfer with minivan
    • Professional guide
    • Entrance fees

    Not included

    • Food and drinks

    What you'll see and do

    1. Postojna Cave

      First and main stop of the Half-Day Trip will be Postojna cave. Guided tour in the cave includes walking and also driving with an underground train thru tunnels, passages and huge halls. In the large concert hall, you will be able to see human fishes inside the big aquarium being the most famous cave animals in the world. Keep in mind that the temperature in the cave is constant and regardless of the season, it is always around 10° C. You should dress accordingly.

      120 minutes here · Admission not included

    2. Predjama Castle

      In the village of Prejama, perched under a natural archway 123m up the rock face, lies Predjama castle. Its listed under the Guinness world record holder for the largest castle in the cave giving it a well-deserved reputation for being virtually impregnable. Predjama castle was built in a Gothic style by the Patriarch of Aquileia sometime during the 13th century and first mentioned in the historical record in the year 1274.

      60 minutes here · Admission not included

    Where it starts and ends

    Meeting point

    Ljubljana

    Our Mamut office is situated on the main bus station in Ljubljana

    Meeting point

    Ljubljana

    Our Mamut office is situated on the main bus station in Bled

    Hotel pickup

    No pickup: everyone meets at the start point.

    Ends at

    Our Mamut office is situated on the main bus station in Ljubljana

    Ends at

    Our Mamut office is situated on the main bus station in Bled

    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
    Mamut Slovenia

    Know before you go

    • Infants and small children can ride in a pram or stroller
    • Service animals allowed
    • Public transportation options are available nearby
    • Infants are required to sit on an adult’s lap
    • Specialized infant seats are available
    • Suitable for all physical fitness levels

    Photos

    Postojna Cave and Predjama Castle Trip including entry tickets in Ljubljana, photo 2Postojna Cave and Predjama Castle Trip including entry tickets in Ljubljana, photo 3Postojna Cave and Predjama Castle Trip including entry tickets in Ljubljana, photo 4

    What travelers are saying

    Outty’s summary of the themes that recur across 7 traveler reviews. Written by us, not quoted from reviewers.

    The guide

    2 mentions

    Travelers single out the guide as the reason the experience works.

    Traveler reviews

    7 verified traveler reviews for Postojna Cave and Predjama Castle Trip including entry tickets. Ratings and reviews provided by Viator and Tripadvisor.

    5 star
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    Sort
    Suruchi_D · October 2026

    Thrilled and Surreal

    Absolutely amazing experience. Enjay was my Tandem instructor Right from the jump from the hill to soaring up in the skies to landing...it was perfect 100 The adrenaline rush he gave by swaying the parachute was a cherry on the cake.

    via Viator

    Naaim_I · May 2026

    Magnificent Postojna Cave beyond immigration

    Magnificent cave tour very much enjoyed it in every aspects. Postojna cave is beyond imagination for what nature created these impressive pieces of arts. I wish that everyone able to visit Postojna to do it today before tomorrow.

    Response from the operator: We're so happy you enjoyed the tour with us, the cave truly is something special. Hope to host you again soon!

    via Viator

    V2469FKsharonb · April 2026

    Great day tour

    This trip was very well done, the cave was very well done with the tram through part of cave, tour guide was very knowledgeable. The castle was also done well with the portable audio guides, overall very happy ‼️

    Response from the operator: Thank you for your kind review!

    via Tripadvisor

    Meadclots · July 2024

    Mamut visit to Postojna and Predjama

    Fantastic visit to Postojna caves. Easy transfers from Bled and back to Ljubljana . Comfortable air conditioned vehicle

    via Tripadvisor

    8ight1986 · October 2019

    Loved the trip, and loved Anna.

    We went to the castle and the cave system, which was great. The castle was really interesting, and it was crazy to imagine people building it back in the day. You can snap some real good pictures there. The cave system was unbelievable, definitely worth seeing when you're in Slovenia. I've never seen anything like it, it was like going to another planet. The trip, in its entirety was fantastic, we were sorry to leave but will be back in the future. I'd also like to mention Anna the lady that drove us from Bled, 2 hours to the castle and cave system. She was absolutely wonderful, we can't say enough good things about this lady. She was polite, welcoming and very friendly, and we talked and laughed with her the entire journey. In fact, she was so memorable and nice to be around that we are planning to book on her skiing project in the future, just to see her again. Anna we loved you hope to see you again soon, love Ewan and Olga (the engaged couple) xxx

    via Tripadvisor

    Good to know

    Duration
    6 hours
    Free cancellation
    Up to 24h before
    Minimum age to book
    All ages
    Availability
    Bookable today
    Runs on
    Every day
    Hotel pickup
    No pickup, meet at start point
    Booked in 30 days
    2
    Verdict
    Solid Choice

    Who runs this experience

    Operated by Mamut Slovenia, who run 8 experiences we rank across 1 city, with an average Outty Ranking of 60.3.

    See everything Mamut Slovenia runs

    Why this scores 61

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

    Traveler sentiment (30% weight)77
    Review evidence (18% weight)33
    Booking momentum (14% weight)21
    Value for money (12% weight)90
    Listing quality (10% weight)77
    Local standing (8% weight)38
    Booking flexibility (8% weight)100

    Postojna Cave and Predjama Castle Trip including entry tickets: questions travelers ask

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

    How much does Postojna Cave and Predjama Castle Trip including entry tickets cost?

    +

    Prices start at $163 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 Trip including entry tickets take?

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    Plan for about 6 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 Trip including entry tickets worth it?

    +

    It holds an Outty Ranking of 61 out of 100, which we label "Solid Choice". That score blends traveler sentiment (4.4/5 across 7 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 Trip including entry tickets?

    +

    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 Trip including entry tickets suitable for kids and families?

    +

    Yes, all ages are welcome. Families should still weigh the 6-hour running time, and strollers are easier on the earlier, quieter departures.

    How far in advance should I book Postojna Cave and Predjama Castle Trip including entry tickets?

    +

    Around 2 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?

    +

    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-hour experience runs outdoors or after sunset.

    Where does Postojna Cave and Predjama Castle Trip including entry tickets 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?

    +

    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, Ljubljana Small Group Food Walking 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 Ljubljana?

    +

    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?

    +

    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?

    +

    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.

    What is included in Postojna Cave and Predjama Castle Trip including entry tickets?

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    Included: Transfer with minivan; Professional guide; and Entrance fees. Not included: Food and drinks. Always check the voucher for the final list before you travel.

    Where is the meeting point for Postojna Cave and Predjama Castle Trip including entry tickets?

    +

    Our Mamut office is situated on the main bus station in Ljubljana Hotel pickup is not included, so plan your own transport and arrive 15 minutes early.

    What languages is Postojna Cave and Predjama Castle Trip including entry tickets offered in?

    +

    It runs in English. Pick your language when choosing a date and time, as not every departure runs in every language.

    Will I get instant confirmation and a mobile ticket for Postojna Cave and Predjama Castle Trip including entry tickets?

    +

    Confirmation is sent by the operator after booking, usually within 48 hours; if it is not confirmed you are not charged. Mobile tickets are accepted, so you can show the voucher on your phone.

    Is Postojna Cave and Predjama Castle Trip including entry tickets wheelchair or stroller accessible?

    +

    The operator notes: Infants and small children can ride in a pram or stroller; Infants are required to sit on an adult’s lap; and Specialized infant seats are available. If accessibility is critical, contact the operator after booking to confirm arrangements for your date.

    What happens to Postojna Cave and Predjama Castle Trip including entry tickets if the weather is bad?

    +

    It generally runs rain or shine, so dress for the forecast in Ljubljana. Standard cancellation terms apply: free cancellation up to 24 hours before the start.

    What do travelers say about Postojna Cave and Predjama Castle Trip including entry tickets?

    +

    Across 7 reviews averaging 4.4 out of 5, recurring themes include the guide. Travelers single out the guide as the reason the experience works.

    Ready to lock in your spot?

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