Postojna Cave Tours

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The Postojna Cave—a subterranean wonderland of karst tunnels, caverns, and galleries, adorned with dramatic stalagmites and stalactites—is one of Slovenia’s most remarkable natural wonders and among the country’s most visited tourist attractions. It stretches along the Pivka River for an impressive 12.5 miles (20 kilometers). 

The Basics
Visitors can discover the underground world of Postojna Cave on a 1.5-hour guided cave tour, which includes a ride on an electric train and an 0.9-mile (1.5-kilometer) hike through cave areas such as  the Great Mountain, the Concert Hall, and the Brilliant Passage. Full-day Postojna Cave tours run from Ljubljana, Koper, and Bled, as well as from Zagreb or Rovinj in Croatia, and are often combined with nearby attractions such as Predjama Castle, Lake Bled, or the Skocjan Caves.

Things to Know Before You Go
  • Guided tours are available in four different languages and audio guides are offered in 17 languages.
  • Temperatures inside the cave average 45–50°F (8–10°C) even in summer, so it’s recommended to bring warm clothing and wear comfortable walking shoes.
  • There is a hotel (Hotel Jama), gift shop, and restaurants onsite.
  • Postojna Cave is accessible for wheelchairs and strollers.

How to Get There
Postojna Cave is located 34 miles (55 kilometers) southwest of Ljubljana, about a 50-minute trip by road. The easiest way to visit is by private car or as part of a guided tour, but it is also possible to arrive by public transport—buses from Ljubljana stop close to the Jama Hotel, while train services connect to Postojna town (1.2 miles or two kilometers away). 

When to Get There
Postojna Cave is open year-round, but the most popular time to visit is between May and October, when tours are held hourly. Winter sees fewer crowds, but it’s best to book ahead as there are sometimes only four interior tours per day.

Highlights of the Postojna Cave Park
After exploring the beautiful caves, pay a visit to the nearby Predjama Castle, the largest cave castle in the world. Then, visit the Proteus Vivarium to discover the large number of animals that dwell in the caves, including the famous olms or “baby dragons.” Other highlights include the EXPO Postojna Cave Karst, an exhibition on the cave’s unique karst landscapes, and adventure tours of the neighboring Pivka Cave and Black Cave.  
Location
Address: Postojna, Slovenia
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Hours: Daily
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Admission: Varies
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23 Tours & Activities to Experience

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Postojna Caves and Predjama Castle Tour from Ljubljana

Explore the fascinating network of subsurface caves during a guided tour of the Postojna Caves and Predjama Castle, leaving from Ljubljana. As you enter the two million year old caves aboard a mini-train, you will learn about why this is one of Slovenia’s most popular attractions. You’ll walk with your guide and witness bizarre stalactites, stalagmites and other rock formations that make up the 13-mile-long (21 km) system of underground caves. You’ll also venture to the enchanting Predjama Castle, a famous castle that still clings to Slovenia’s limestone cliffs.
  • Duration: 6 hours 30 minutes
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$85.16 USD
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  • Duration: 6 hours 30 minutes
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$85.16 USD

Postojna Cave with Train Ride and Predjama Castle Half Day Trip from Ljubljana

Visit Slovenia’s Postojna Cave and Predjama Castle from Ljubljana without the bother of using public buses or trains. Admire the scenery as you travel to Postojna by air-conditioned vehicle, and hear background from your guide en route. Then, roam the stalactite- and stalagmite-filled caverns by underground train and foot as you hear their history before exploring 13th-century Predjama Castle, built into cliffs. Entry fees and choice of departures included.
  • Duration: 5 hours
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$90.91 USD
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  • Duration: 5 hours
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$90.91 USD

Predjama Castle and Postojna Cave Tour from Ljubljana

Experience two of Slovenia’s most alluring destinations during an afternoon half-day, small-group tour departing from Ljubljana. You’ll traverse the countryside to the Predjama Castle nestled under a natural cliff archway and learn of its legends as you explore the bizarre staircases and chambers. Next the tour journeys to Postojna Cave, home of unusual yet immaculate stalactites and stalagmites. With your guide, you will voyage on a mini-train into its network of caves and caverns which makes up the largest karst cave in the country. This tour is limited to eight people to ensure a quality experience.
  • Duration: 5 hours
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$85.16 USD
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  • Duration: 5 hours
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$85.16 USD

Postojna Cave and Predjama Castle Small-Group Day Trip from Bled

Combine the mystifying Postojna Caves with the medieval village of Predjama on this family-family day-trip from Bled. Over the course of seven hours, you’ll discover the stalactites and stalagmites of the Postojna Caves, Slovenia’s most popular tourist attraction, and visit the fairy tale Predjama Castle, a 700-year-old structure carved into the mouth of a cave. Hotel or port pickup and drop-off is included on this small-group tour, limited to 12 people.
  • Duration: 7 hours
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$111.63 USD
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  • Duration: 7 hours
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$111.63 USD

Postojna Cave and Castle Small-Group Day Tour from Ljubljana

Ideal for families, this 7-hour day trip from Ljubljana combines two of Slovenia’s top attractions, Postojna Cave and Predjama Castle. From Ljubljana, you’ll travel with ease to Postojna Cave to explore stalactite-studded caverns and limestone passages in an electric train. Then, you’ll take a tour of the fairy tale Predjama Castle perched on a hillside at the mouth of a gaping cavern. Hotel pickup and drop-off in Ljubljana are included on this small-group tour, limited to 15 people.
  • Duration: 5 hours 30 minutes
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$82.86 USD
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  • Duration: 5 hours 30 minutes
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$82.86 USD

Postojna Cave and Lake Bled Small-Group Tour from Ljubljana

Lake Bled and Postojna Cave are two of Slovenia’s most impressive natural wonders and this full-day tour from Ljubljana visits both in one day. Venture underground to explore the dramatic caves, tour the medieval Predjama Castle, then visit the alpine town of Bled, where you can cruise across Lake Bled, tour Bled Castle, and sample local specialties such as potica pastries.
  • Duration: 10 hours 30 minutes
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$154.21 USD
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  • Duration: 10 hours 30 minutes
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$154.21 USD

Postojna Cave and Predjama Castle Tour from Bled

Explore Postonja Cave and Predjama Castle on a full-day tour from Lake Bled, going deep underground then climbing into an ancient fortress built high into a cliff. Guided tours of each site go from the natural history of region to the dramatic battles and sieges at Postonja Castle, and combining the two adjacent destinations into a single day saves hours of driving time.
  • Duration: 6 hours
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$85.16 USD
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  • Duration: 6 hours
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$85.16 USD

Private Tour: Postojna Cave (Queen Of The Caves) And Predjama Castle

Experience Europe`s Biggest Cave and the Fairytale Cave Castle at your own pace and privacyJoin us on this private shore excursion journey to the world`s famous Postojna Cave and fairytale Predjama Castle in a comfortable, clean, air conditioned up to date people`s carrier/van/car. This is a tour for one party only.Definitely one of the best options to experience Slovenia.
  • Duration: 4 to 6 hours
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$77.10 USD
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  • Duration: 4 to 6 hours
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$77.10 USD

UNESCO Skocjan Caves and Karst Wine and Food Day Trip from Ljubljana or Bled

Experience a day in Slovenia you’ll never forget with this full-day Postojna Caves and food tour from Ljubljana. Your friendly local guide will first take you to famous Postojna Caves, home to some of the biggest stalactites and stalagmites in the world. After wandering through the caves you’ll continue on to Karst, where the rest of your day will be dedicated to experiencing the best of Slovenian food and wine. At a farm in the Upper Vipava Valley you’ll learn traditional cooking techniques and sip on delicious wines before finally returning to Ljubljana at the end of the day.
  • Duration: 8 hours
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$138.10 USD
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  • Duration: 8 hours
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$138.10 USD

Slovenia in One Day: Small-Group Day Trip to Lake Bled, Postojna Cave and Predjama Castle from Ljubljana

Discover Slovenia’s three most visited sights including  Lake Bled, Predjama Castle and Postojna Cave during a memorable small-group day trip departing from Ljubljana. Experience the serenity of Lake Bled as you and your guide cross to Bled Island on a two-oar pletna boat and see beautiful fish swimming in the glacial lake. Visit Bled Castle which rises high atop a cliff where amazing views can be captured and stop for lunch during free time around the lake. You’ll also explore the winding stairways of Predjama Castle and then observe bizarre rock formations in Postojna Cave the second longest cave network in the country. This tour is limited to eight people for a personalized experience.
  • Duration: 10 hours 30 minutes
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$155.36 USD
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  • Duration: 10 hours 30 minutes
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$155.36 USD

Postojna Cave and Predjama Castle Day Trip from Koper

Explore one of the most beautifully carved cave systems in the world with a Postojna Cave tour from Koper. This is the only cave in the world that can be toured by train making this a perfect choice for families and visitors of all abilities. You’ll pass under carved archways and through stalactite and stalagmite covered galleries all from the comfort of your seat on the train. You’ll then enjoy a guided walking tour of the cave’s underground labyrinth of tunnels, passageways, and caverns before stopping off at the Predjama Castle on your way back to Koper.
  • Duration: 5 hours
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$75.19 USD
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  • Duration: 5 hours
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$75.19 USD

Bled and Postojna Day Tour from Ljubljana

Get the most from your Slovenian travels with this day trip to Bled and Postojna from Ljubljana. Enjoy personal attention from your guide on this small-group tour, and visit must-see sights such as the Postojna Cave, Lake Bled, and Predjama castle. 
  • Duration: 10 hours 30 minutes
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$125.44 USD
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  • Duration: 10 hours 30 minutes
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$125.44 USD

Ljubljana with Postojna Cave Excursion from Zagreb

Make the most of Croatia’s close proximity to Slovenia during an 11-hour day-trip to Ljubljana and the Postojna Caves from Zagreb. After just a 2-hour coach journey, you’ll discover Ljubljana’s charming Old Town, Triple Bridge (Tromostovje), and the 15th-century Ljubljana Castle before continuing to the Postojna Caves, Slovenia’s most popular tourist attraction. Enjoy a thrilling ride into the karst cave, inhabited by stalactites, stalagmites, and salamanders. Hotel pickup and drop-off in Zagreb are included on this small-group tour, limited to eight people.
  • Duration: 12 hours
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$79.41 USD
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  • Duration: 12 hours
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$79.41 USD

Enchanting Ljubljana and Postojna Caves Small-Group Tour from Zagreb

Visit two highlights of Slovenia on a day-trip from Zagreb to Postojna Caves and the capital city of Ljubljana. Go underground into karst tunnels and passageways, and ride a narrow-gauge train through the cave’s interior. Take a walking tour of Ljubljana’s historic center, then earn panoramic views of the city from the Ljubljana Castle. This full-day Slovenia tour includes pickup and drop-off at selected hotels as well as all activities, and it’s limited to 15 people for a personalized experience.
  • Duration: 11 hours
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$184.13 USD
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  • Duration: 11 hours
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$184.13 USD

Postojna cave and Predjama castle day trip from Bled

Combine a visit to the Postojna Caves with a trip to the Predjama Castle on day trip from Bled. With this tour, you’ll enjoy two of Slovenia’s top attractions all in one day and be delivered back to Bled in time for sunset. You’ll wander through the fascinating underground world of Postojna Caves gazing at bizarre rock formations and countless stalactites and stalagmites, and then stop by the real-life farilytale Predjama Castle on your way back to Bled.
  • Duration: 6 hours
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$85.16 USD
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  • Duration: 6 hours
From
$85.16 USD

Postojna Cave and Predjama Castle Day Trip from Rovinj

Make the most of your time in the Balkans with a day trip to Slovenia’s Postojna Cave and Predjama Castle from Rovinj. Discover the well-known cave’s natural formations, flora, and fauna before heading to Predjama Castle, nestled in the cliff face, to explore its medieval history and Renaissance architecture. Enjoy seamless transfer to each location with round-trip transportation from your hotel, and avoid hidden costs with entrance fees included.
  • Duration: 5 hours
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$130.43 USD
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  • Duration: 5 hours
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$130.43 USD

Excursion to Postojna Cave and Predjama Castle from Ljubljana

Escape the hustle of Slovenia’s capital city and explore the magnificently carved natural wonders of Postojna cave on a day trip from Ljubljana. Upon arrival, you’ll hop on board an electric train and take a ride deep into the underground labyrinth of tunnels. With a guide, you’ll wander the passageways and galleries to view the bizarre rock formations that make up this karst cave system. On the way back to Ljubljana, you’ll also visit the mysterious Predjama Castle dramatically clung to the side of a limestone cliff.
  • Duration: 5 hours
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$115.66 USD
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  • Duration: 5 hours
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$115.66 USD

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Postojna cave and Ljubljana group tour from Zagreb

Spend the day in Slovenia on this full-day excursion from Zagreb. Round-trip transportation eliminates the need to rent a car, and makes the multi-stop trip easy with all details taken care of. Visit the Postojna Cave, exploring the ancient rock formations aboard a mini train. Explore the Slovenian capital of Ljubljana and its highlights on a narrated walking tour with your guide.
  • Duration: 12 hours
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$92.06 USD
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  • Duration: 12 hours
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$92.06 USD

4 days Essential Slovenia small group

Discover Slovenia’s historic capital and natural wonders on this 4-day small-group tour by minivan. Take in the highlights of Ljubljana, visit the lakeside resort town of Bled, and explore the magnificent Postojna Cave. Also included is a visit to the famous Lipica Stud Farm, the glacier lake of Bohinj, the Vintgar Gorge, and the coastal town of Piran.
  • Duration: 4 days
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$454.57 USD
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  • Duration: 4 days
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$454.57 USD

Bled and Postojna Small-Group Day Tour from Bled

Take advantage of Slovenia’s small size and tick off three of the country’s top attractions in just one day on an 11.5-hour day-trip from Bled. Start by enjoying stunning panoramas of Lake Bled from the elevated vantage point of Bled Castle (Blejski Grad) and then discover the stalactite-studded cavers of the Postojna Cave, Slovenia’s most popular tourist attraction. See, too, the 700-year-old Predjama Castle, cradled by the gaping mouth of a cliff, and tour the castle’s opulent chambers. Free hotel pickup and drop-off are included on this small-group tour, limited to 10 people.     
  • Duration: 11 hours 30 minutes
From
$154.21 USD
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  • Duration: 11 hours 30 minutes
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$154.21 USD

Private tour to Postojna Caves and Predjama Castle from Ljubljana

Spend a day exploring the sites of Slovenia’s Karst region with a private tour from Ljubljana. With this tour, you’ll save precious vacation moments by enjoying private transportation directly to the Postojna Caves and Predjama Castle. You’ll take a memorable underground train journey into the heart of Postojna Caves and enjoy a tour of the underground world of massive stalactites, caverns, and other wonders before continuing on for a tour of the dramatic, cliffside Predjama Castle.
  • Duration: 6 hours 30 minutes
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$102.42 USD
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  • Duration: 6 hours 30 minutes
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$102.42 USD

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Best of Slovenia in Three Days

The historic city of Ljubljana makes the perfect home base for exploring three magnificent Slovenian regions, but coordinating transport through the mountainous country eats into valuable travel time. Enjoy Slovenia highlights in the Alps, central mountains, and coast on a 3-day tour that takes care of logistics; that leaves you free to focus on taking in the beauty at Predjama Castle, Postonja Cave, Lake Bled, Bohinj, Piran, and more.
  • Duration: 3 days
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$333.73 USD
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  • Duration: 3 days
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$333.73 USD

Postojna cave and Ljubljana semi private tour from Zagreb

Explore Ljubljana and the Postojna Cave on this easy day trip from Zagreb, where all the details are arranged for you. Booking a guided tour means no need to rent a car or haggle for taxi prices; you can sit back and enjoy the scenery on round-trip transportation. Check out the odd rock formations in the Postojna Caves aboard a mini train, then head for the Slovenian capital to see all the most important sites with commentary from your guide.
  • Duration: 11 hours
From
$126.59 USD
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  • Duration: 11 hours
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$126.59 USD


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