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Home/Slovenia/Predjama Castle (Predjamski Grad)

Explore Predjama Castle: Slovenia's Iconic Cave Fortress

Step into a fairy tale at Predjama Castle (Predjamski Grad), the world's largest cave castle built into a dramatic vertical cliff. This breathtaking Slovenian attraction offers a unique blend of historical mystery and natural wonder. Explore the legendary karst cave systems, embark on immersive castle tours, or join a guided sightseeing adventure to witness this architectural marvel firsthand. Whether you are seeking a cultural journey through medieval history or an epic adventure in nature, Predjama Castle provides an unforgettable experience. Book your tour today to discover why travelers worldwide call this a stunning must-see destination!

4.7/5 avg ratingTours from $873,500+ reviews90% free cancellation

At a glance

Rating

Rating

4.7/5 stars

Based on 3,508 pooled reviews with ~89% positive sentiment

Tour Price

Tour Price

$135–$329 typical

Median price is $160, with a wide range up to $916

Tour Length

Tour Length

5–11 hours typical

Median duration is 6 hours

Best For

Best For

Nature & Cave Tours

Nature themes (96%) and Cave Tours (87%) are the most common options

Booking Perks

Booking Perks

90% free cancellation

94% of options also offer instant confirmation

Languages

Languages

8 languages available

Includes English, Italian, German, Spanish, French, Croatian, Chinese, and Czech

69 Products

Postojna Cave and Predjama Castle - Entrance Tickets Included

Postojna Cave and Predjama Castle - Entrance Tickets Included

6 hrsEco-FriendlyFree cancellation
4.83 (1,021 reviews)
90.54%
9.46%
Lovely tripFabulousvery good experience
Viator
$128
Book now
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Postojna Cave and Predjama Castle - Entrance Tickets Included
Summary

On this day we take you to the biggest and worldwide known Slovenian cave system - the Postojna caves. Amazing two million years old and 21 km long system of underground caves is one of the most easily accessible networks of underground caves in the world. First, you will experience the ride by elec...

Inclusions
  • Entrance to Postojna cave
  • Pick up and drop of service in central Ljubljana
  • Entrance to Predjama Castle
  • Audio guide in Predjama Castle
  • Skip the line service
  • English Speaking Driver/Guide
Exclusions
  • Food and drinks
  • Your personal expenses
Itinerary
  • Postojna Cave
  • Predjama Castle
Good to know
  • Public transportation options are available nearby, Specialized infant seats are available, Suitable for all physical fitness levels, There is a constant temperature of 10°C (50°F) in the caves, dress properly, and wear comfortable shoes (flipflops are not recommended)., The minimum number of participants must 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 date/tour or full refund., In case you fail to provide us with a desired meeting point up until 24h before departure, your meeting point will be the City hotel (Dalmatinova 15, 1000 Ljubljana), Child rate applies only when sharing with 2 paying adults.
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Slovenia in One Day: Small-Group Bled, Postojna Cave & Predjama

Slovenia in One Day: Small-Group Bled, Postojna Cave & Predjama

10 hrsEco-FriendlyFree cancellation
4.86 (911 reviews)
88.54%
11.46%
stunninggreat tourvery best tour guides
Viator
$153
Book now
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Slovenia in One Day: Small-Group Bled, Postojna Cave & Predjama
Summary

The Slovenia in One Day tour, running small-group from Ljubljana since 2011: Lake Bled, Postojna Cave, and Predjama Castle in one day, with a licensed local guide and no more than 8 guests. One day, three of Slovenia's best-known places! You'll glide across Lake Bled on a traditional pletna boat t...

Inclusions
  • Central Ljubljana meeting point
  • Licensed local English-speaking guide-driver
  • Comfortable air-conditioned minivan, small group of up to 8, not a big coach
Exclusions
  • Pletna boat ride to Bled island
Itinerary
  • Postojna Cave
  • Predjama Castle
  • Lake Bled
  • Bled Island
  • Bled Castle (Blejski Grad)
Good to know
  • Infants and small children can ride in a pram or stroller, Specialized infant seats are available, 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., Please keep in mind that there are quite a few stairs at the Bled island, Bled castle, and 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).
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Postojna cave, Predjama castle and Piran tour from Ljubljana

Postojna cave, Predjama castle and Piran tour from Ljubljana

10 hrsEco-FriendlyFree cancellation
4.97 (93 reviews)
96.29%
3.71%
excelenteGreat tripterrific tour guide
Viator
$132
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Postojna cave, Predjama castle and Piran tour from Ljubljana
Summary

The road will initially lead us to the Postojna cave, where we will admire one of the most popular karst caves in the world. While riding on the cave train, everyone will be fascinated by the cave's might and its karst phenomena. We will then continue our trip and reach the unique and largest cave c...

Inclusions
  • Hotel pick up and drop off
  • Professional English speaking guide
  • Transport by air-conditioned minivan
Exclusions
  • Food and drink
  • Gratuities (optional)
  • Postojna Cave and Predjama Castle entrance fee
  • Postojna Cave ticket only (without Castle) - 29,5 €
Itinerary
  • Postojna Cave
  • Predjama Castle
  • Piran
Good to know
  • Specialized infant seats are available, Suitable for all physical fitness levels
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Postojna Cave and Predjama Castle - Private Tour from Trieste

Postojna Cave and Predjama Castle - Private Tour from Trieste

6 hrsSkip the linePrivate tourFree cancellation
5 (11 reviews)
95.74%
4.26%
Muy buenoMarvelous experiencewould recommend
Viator
$292
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Postojna Cave and Predjama Castle - Private Tour from Trieste
Summary

Wonderland Does Exist! Join us on this exclusive small group shore excursion journey to the world`s famous Postojna Cave and fairytale Predjama Castle in a comfortable, clean, air conditioned up to date passenger van for up to 8 persons max. Definitely one of the best options to experience sLOVEnia...

Inclusions
  • Ticket for the Predjama Castle
  • English speaking driver/ escort / guide
  • All Private Transportation
  • Basic Insurance
  • Complimentary bottle of water
  • All transportation in up to date comfortable, air- conditioned passenger van for up to 8 persons
  • Hotel or cruise port pickup and drop-off
  • Ticket for the cave
Exclusions
  • Food is not included.
Itinerary
  • Trieste Terminal Passeggeri
  • Postojna Cave
  • Predjama Castle
  • Trieste Terminal Passeggeri
Good to know
  • Wheelchair accessible, Infants and small children can ride in a pram or stroller, Service animals allowed, Specialized infant seats are available, Transportation options are wheelchair accessible, All areas and surfaces are wheelchair accessible, Suitable for all physical fitness levels, All participants under the age of 18 must have at least one adult in the group, Small group goes for the time of transportation only (up to 20). Since the caves are under national protection you will join a larger group guided by a local cave guide, Pickup is from Trieste cruise terminal but is also available from any location within Trieste town limits. Please provide us pickup location at the time of booking reservation., Children aged 5 and younger pay only insurance (1 Eur), You will receive exact optimized tour departure time by the last week before the tour after we receive the final update for the ship arrival / departure times from the port authorities, Please provide your ship name and arriv dissembark/ departure times at the time of booking., PLEASE BE AWARE THAT THE TEMPERATURE IN THE CAVES IS AROUND 10 degrees Celsious or 50 degrees Fahrenheit ALL YEAR ROUND SO WEAR APPROPRIATE CLOTHES. (SPORT SHOES AND A JACKET), This tour operates in all weather conditions so please wear appropriate clothes in case of wind or rain.
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Slovenian highlights - Lake Bled, Postojna Cave & Predjama Castle from Ljubljana

Slovenian highlights - Lake Bled, Postojna Cave & Predjama Castle from Ljubljana

10.5 hrsFree cancellation
4.93 (102 reviews)
94.65%
5.35%
fantasticfantastic tourhighly recommend
Viator
$140
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Slovenian highlights - Lake Bled, Postojna Cave & Predjama Castle from Ljubljana
Summary

This full-day tour will start in the heart of the Alps, where we will visit one of the largest natural attractions in Slovenia - Lake Bled. Besides the blue-green lake, we will be able to admire also the picturesque architecture of the Bled castle, which is built atop a cliff that rises above the la...

Inclusions
  • Discount on tickets for Postojna Cave and Predjama Castle (13% off through our tourist agency)
  • Hotel pick up and drop off
  • Professional English speaking guide
  • Transport by air-conditioned minivan
Exclusions
  • Food and drink
  • Postojna Cave and Predjama Castle entrance fee (41,5 €)
  • Optional: Pletna boat (20€) - cash only
  • Optional: Bled castle entrance fee (19€)
Itinerary
  • Bled
  • Postojna Cave
  • Predjama Castle
Good to know
  • Specialized infant seats are available, Suitable for all physical fitness levels
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Postojna cave and Predjama castle Tour from Ljubljana

Postojna cave and Predjama castle Tour from Ljubljana

5.5 hrsFree cancellation
4.94 (32 reviews)
97.1%
2.9%
Amazinghighly recommendexcellent experience
Viator
$82
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Postojna cave and Predjama castle Tour from Ljubljana
Summary

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 tra...

Inclusions
  • 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
Exclusions
  • Food and drink
  • Gratuities (optional)
  • Postojna Cave and Predjama Castle entrance fee - 41,5 €
  • Postojna Cave entrance (without the Castle) - 29,5 €
Itinerary
  • Postojna Cave
  • Predjama Castle
Good to know
  • Service animals allowed, Specialized infant seats are available, Suitable for all physical fitness levels
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Ljubljana: Postojna cave & Predjama castle small group tour

Ljubljana: Postojna cave & Predjama castle small group tour

5.5 hrsFree cancellation
4.83 (167 reviews)
91.52%
8.48%
fantasticPerfect tripPerfect guide
Viator
$89
Book now
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Ljubljana: Postojna cave & Predjama castle small group tour
Summary

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 Pr...

Inclusions
  • Central Ljubljana meeting point
  • Comfortable transport by air-conditioned minivan
  • Professional English speaking guide
Exclusions
  • Postojna Cave & Predjama Castle combined ticket: from 45 € per person (dynamic prices)
  • Postojna cave only: from 33 € per person
Itinerary
  • Predjama Castle
  • Postojna Cave
Good to know
  • 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).
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Ljubljana, Postojna Cave&Predjama Castle with Tickets from Zagreb

Ljubljana, Postojna Cave&Predjama Castle with Tickets from Zagreb

11 hrsFree cancellation
4.91 (35 reviews)
94.52%
5.48%
amazinginterestinghappy
Viator
$200
Book now
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Ljubljana, Postojna Cave&Predjama Castle with Tickets from Zagreb
Summary

Discover the biggest gems of Croatia’s neighboring country - Slovenia. We start with Postojna cave to soak up some mesmerizing views of underground karst life. After a guided tour in the cave we continue to the astonishing Predjama Castle. We conclude the experience with Ljubljana, an enchanting cit...

Inclusions
  • Predjama Castle entrance fee with audio guide
  • Transport by air-conditioned vehicle
  • Postojna cave entrance fee with guided tour
  • Professional English speaking guide
  • Ljubljana city tour with licensed guide
  • Hotel pickup and drop-off (selected hotels only)
Exclusions
  • Food and drinks
Itinerary
  • Postojna Cave
  • Predjama Castle
  • Ljubljana
Good to know
  • Public transportation options are available nearby, Not recommended for travelers with poor cardiovascular health, Suitable for all physical fitness levels, Instant confirmation at the time of your booking., Small group for a GREAT experience (maximum 8 participants)., A moderate amount of walking with some steep parts is involved., The temperature in the cave is around 8 Celsius (46 Fahrenheit), please wear appropriate warm clothes., The tour operates in all weather conditions.
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Private Ljubljana and Postojna Cave Tour from Zagreb

Private Ljubljana and Postojna Cave Tour from Zagreb

10 hrsPrivate tourFree cancellation
4.91 (11 reviews)
87.72%
12.28%
amazingweltberĂĽhmte SehenswĂĽrdigkeitempfehlen
Viator
$494$561
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Private Ljubljana and Postojna Cave Tour from Zagreb
Summary

Join us on a carefully planned private trip to Slovenia, where you’ll get to experience three of the country’s top attractions in just one day. Discover the breathtaking Postojna Cave, one of the largest and most impressive cave systems in Europe, and visit the fairytale-like Predjama Castle, dramat...

Inclusions
  • Hotel pickup and drop-off
  • Private tour
  • Tour escort/host
  • Driver
Exclusions
  • Entrance fees to Postojna cave, Predjama castle and atractions in Ljubljana
  • Local guide
  • gratitude for the driver
Itinerary
  • Predjama Castle
  • Postojna Cave
  • Ljubljana Old Town
Good to know
  • Specialized infant seats are available, Infants and small children can ride in a pram or stroller, Suitable for all physical fitness levels, Children must be accompanied by an adult, A current valid passport or ID card is required on the day of travel
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Tour to Postojna and Predjama Castle from Koper

Tour to Postojna and Predjama Castle from Koper

5 hrsEco-FriendlyFree cancellation
4.87 (47 reviews)
81.16%
18.84%
awesomerecommendGreat experience
Viator
$117
Book now
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Tour to Postojna and Predjama Castle from Koper
Summary

In this 5 hours long tour, you will visit the most popular attraction in Slovenia! Postojna caves is one of the kind, not just in Slovenia, but also in Europe. Explore fascinating underground systems and learn more about this natural phenomena.  You enter and exit the cave with the small electric tr...

Inclusions
  • Predjama Castle photostop
  • Transportation with AC van/minibus/coach
  • Driver/guide
  • Port pickup and drop-off
  • Entrance fee to Postojna Cave
Exclusions
  • Food and drinks
Itinerary
  • Postojna Cave
  • Predjama Castle
Good to know
  • Travelers should have at least a moderate level of physical fitness, Child rate applies only when sharing with 2 paying adults, Children must be accompanied by an adult, A minimum of 2 adults and maximum 15 people per booking is required, At time of booking, Cruise ship passengers must provide the following information at time of booking: ship name, docking time, disembarkation time and re-boarding time, May be operated by a multi-lingual guide
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Pairs well with

Landmarks travelers visit on the same route as Predjama Castle (Predjamski Grad).

Postojna Cave
Learn more

Postojna Cave

7.0 km away • from $34

Skocjan Caves (Skocjanske Jame)
Learn more

Skocjan Caves (Skocjanske Jame)

20 km away • from $94

Hrastovlje
Learn more

Hrastovlje

38 km away • from $102

Portoroz
Learn more

Portoroz

53 km away • from $30

Frequently Asked Questions

Get answers to the most common questions travelers ask before visiting.

Predjama Castle stands out for its dramatic setting inside a cave, and that's reflected in the tours on offer. 96% of the options we compare emphasize nature, while 87% are structured as cave tours that let you explore both the castle and the surrounding karst landscape. Combined across booking platforms, the attraction has earned a 4.7-star rating across 3,508 reviews, with overwhelmingly positive feedback highlighting the stunning scenery and unique combination of history and geology.

Across the booking platforms we compare, most tours fall in the $135–$329 range, with a median price of $160. The full spread runs from around $87 to $916, depending on tour length, group size, and what's included. Longer day trips and private tours tend toward the higher end, while shorter guided visits stay closer to the lower end of that typical band.

Yes, private tours make up a significant share of what we compare. 35% of the options we compare are private tours, making them unusually common for this attraction. Private options typically sit at the higher end of the overall price range, but they're worth considering if you want flexibility, a personalized itinerary, or to travel with a small group. Most private tours still offer the same free cancellation (90% of all options) and instant confirmation that group tours do.

Most tours come with a guide included (88% of the options we compare). About a third also bundle in your entry ticket, while roughly half offer hotel pickup and drop-off. Transport and insurance are less common but available on some tours. Check the fine print for each booking, since inclusions vary, but you can expect professional guidance and usually the castle entry itself.

Tours usually run 5–11 hours, with a median of around 6 hours. This typically includes travel time to and from the castle, a guided exploration of both the cave and the fortress, and sometimes a walk through the surrounding countryside. Shorter options focus mainly on the castle itself, while longer day trips may include nearby attractions or more time for nature walks.

Yes, the tours we compare are offered in 8 languages: English, Italian, German, Spanish, French, Croatian, Chinese, and Czech. This makes it relatively easy to find a guide in your preferred language, though availability varies by tour operator and booking platform. If you have a specific language preference, it's worth filtering your search or checking with the tour provider before booking.

28% of the options we compare are tagged as eco-friendly, which is a notable presence for this destination. These tours typically emphasize low-impact transport and sustainable practices while exploring the natural and historical features of the castle and surrounding landscape. Keep in mind that platform eco-labels are applied loosely, so if environmental credentials matter to you, it's worth reading the tour details to confirm what that means in practice.

Booking ahead is a good idea. 94% of the options we compare offer instant confirmation, so you can secure your spot online right away, and 90% allow free cancellation if your plans change. Only a small handful of tours are flagged as likely to sell out, but popular time slots can fill up, especially during peak season. Booking in advance gives you peace of mind and the widest choice of departure times and tour types.

Tours use a mix of transport methods depending on the itinerary. Car-based tours are the most common (32% of options), followed by walking tours (28%), bus tours (19%), and a smaller number using electric train or train transport. Many tours combine methods, so you might travel by car to the castle and then walk through the cave and grounds. Check the tour details to see which approach suits your fitness level and preferences.

Based on the reviews we've pooled across booking platforms, absolutely. The 4.7-star rating across 3,508 reviews reflects consistently strong satisfaction, with reviewers repeatedly using words like amazing, fantastic, excellent, and stunning. The combination of a dramatic clifftop castle, an actual cave system, and beautiful natural surroundings makes it a genuinely distinctive experience that justifies the time and cost for most visitors.

Skip-the-line tours exist but are uncommon. Only 2 of the 69 options we compare (3%) include skip-the-line access. If avoiding queues is important to you, these are worth seeking out specifically, though they may come at a premium. For most visitors, standard entry and a guided tour are sufficient, especially if you book a tour that includes your entry ticket upfront.

Take a train or car from Ljubljana to Postojna (about 1 hour), then a local bus or taxi to Predjama Castle (15 minutes away).

You can tour the interior with a guide. Tickets include access to rooms, passages, and views of the cave system beneath the castle.

Both attractions are 9 km apart. Plan a full day visit combining castle tours in morning with cave exploration in afternoon for optimal experience.

Postojna Cave7kmSkocjan Caves (Skocjanske Jame)19.7kmLipica25kmLjubljanica River35.4kmHrastovlje37.9kmKrizanke Summer Theatre (Poletno Gledalisce Krizanke)38.8kmCankar Centre (Cankarjev Dom)38.8kmTivoli Park and Mansion38.8kmNational and University Library of Slovenia (Narodna in Univerzitetna Knjiznica)38.9kmMuseum of Illusions Ljubljana39kmCongress Square (Kongresni Trg)39kmCobblers' Bridge (Cevljarski Most)39.1km