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Postojna Cave Tours

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160 Reviews
Postojna Cave
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.  
Address: Postojna, Slovenia
Hours: Daily
Admission: Varies
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77 Tours and Activities to Experience Postojna Cave

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Postojna Cave and Predjama Castle Tour from Ljubljana

Postojna Cave and Predjama Castle Tour from Ljubljana

star-5
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, learn about why this is one of Slovenia’s most popular attractions. 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. Also venture to the enchanting Predjama Castle, a famous castle that still clings to Slovenia’s limestone cliffs.
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  • 6 hours 30 minutes
  • Free Cancellation
From
US$96.00
From
US$96.00

Predjama Castle and Postojna Cave Tour from Ljubljana

Predjama Castle and Postojna Cave Tour from Ljubljana

star-5
Experience two of Slovenia’s most alluring destinations during an afternoon half-day, small-group tour departing from Ljubljana. 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, journey to Postojna Cave, home of unusual yet immaculate stalactites and stalagmites. With your guide, 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.
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  • 5 hours
  • Free Cancellation
  • Taking safety measures
From
US$53.81
From
US$53.81
Taking safety measures

Postojna Cave and Predjama Castle Tour from Bled

Postojna Cave and Predjama Castle Tour from Bled

star-5
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.
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  • 6 hours
  • Free Cancellation
From
US$94.46
From
US$94.46

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

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

star-5
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 cross to Bled Island on a two-oar pletna boat. Visit Bled Castle which rises high atop a cliff where amazing views can be captured and enjoy some free time. Explore the winding stairways of Predjama Castle and then observe bizarre rock formations in Postojna Cave—the second-longest cave network in the country.
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  • 10 hours 30 minutes
  • Free Cancellation
  • Taking safety measures
From
US$105.22
From
US$105.22
Taking safety measures

Postojna Cave and Castle Small-Group Day trip from Ljubljana

Postojna Cave and Castle Small-Group Day trip from Ljubljana

star-4.5
Ideal for families, this 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.
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  • 5 hours 30 minutes
  • Free Cancellation
  • Taking safety measures
From
US$50.22
From
US$50.22
Taking safety measures

Bled Lake with Postojna Cave & Castle - small group - day trip from Ljubljana

Bled Lake with Postojna Cave & Castle - small group - day trip from Ljubljana

star-5
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. 
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  • 10 hours 30 minutes
  • Free Cancellation
  • Taking safety measures
From
US$106.42
From
US$106.42
Taking safety measures

Postojna Cave & Predjama Castle from Koper

Postojna Cave & Predjama Castle from Koper

star-4.5
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.
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  • 5 hours
  • Free Cancellation
From
US$119.57
Price varies by group size
From
US$119.57
Price varies by group size

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

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

star-5
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.
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  • 5 to 6 hours
  • Free Cancellation
From
US$96.00
From
US$96.00

PRIVATE TOUR Postojna Cave and Predjama Castle from Ljubljana

PRIVATE TOUR Postojna Cave and Predjama Castle from Ljubljana

star-5
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.
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  • 6 hours 30 minutes
  • Free Cancellation
From
US$142.29
Price varies by group size
From
US$142.29
Price varies by group size

Postojna Cave & Predjama Castle with tickets - Small Group Shore Tour from Koper

Postojna Cave & Predjama Castle with tickets - Small Group Shore Tour from Koper

star-5
This small-group shore excursion is ideal for travelers with limited time in Slovenia. You won’t have to worry about the trip being overcrowded as the tour is limited to eight people. Take the stress out of planning transport by having round-trip transport from the cruise ship terminal or Koper hotels provided. Explore Postojna Cave with a guide, so you won’t get lost, and then visit the picturesque Predjama Castle.
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  • 6 hours
  • Free Cancellation
  • Taking safety measures
From
US$143.89
Price varies by group size
From
US$143.89
Price varies by group size
Taking safety measures

Postojna Cave and Predjama castle

Postojna Cave and Predjama castle

star-5
Meet the Queen of Caves Meet the Queen of Caves. Before 1818, visitors could visit a mere 300 metres of the cave, while today more than five kilometres of fascinating cave chambers, passageways and spectacular halls can be seen as part of a cave tour lasting an hour and a half. The cave train first takes you through a manmade tunnel and then through the first natural passage, which was blackened by petrol destroyed during the Second World War. After this passage, you get to see two cave halls, first the Gothic Hall, which boasts an abundance of cave formations, followed by the Congress Hall. After a two-kilometre train ride, you arrive at the Great Mountain, where you get off the train and cross the Russian Bridge to reach the Beautiful Caves, as well as the most famous stalagmite and the symbol of Postojna Cave – the so-called Brilliant. The tour comes to an end by visitors boarding the train and returning to the surface.
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  • 8 to 10 hours
  • Free Cancellation
From
US$178.47
From
US$178.47

Shore Excursion to Postojna Cave - Slovenia's famous attraction

Shore Excursion to Postojna Cave - Slovenia's famous attraction

star-5
Explore one of the most intriguing cave systems in the world with a Postojna Cave tour from Koper. You’ll be transported into the heart of the cave by train making this tour accessible for all ages and types of travelers. Once inside, you’ll enjoy a guided walking tour though the stunning passageways and chambers flanked by spectacularly carved stalactite and stalagmite formations. On the way back to Koper, you’ll visit the Renaissance fortress of Predjama Castle carved dramatically into the mouth of a cave.
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  • 5 hours
  • Free Cancellation
  • Taking safety measures
From
US$88.00
From
US$88.00
Taking safety measures

Postojna cave and Predjama castle from Ljubljana

Postojna cave and Predjama castle from Ljubljana

Enter the Karst Postojna Cave, where you discover the underground spectacular stalactites, stalagmites and more by riding the train. In the end visit majestic Predjama Castle carved into a stone wall.
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  • 6 hours
  • Free Cancellation
From
US$94.46
From
US$94.46

Postojna Cave and Predjama Castle Small-Group Trip

Postojna Cave and Predjama Castle Small-Group Trip

star-3.5
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.
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  • 6 to 7 hours
  • Free Cancellation
From
US$95.66
From
US$95.66

Postojna Cave & Predjama Castle from Portoroz

Postojna Cave & Predjama Castle from Portoroz

Explore a maze of underground caverns and a dramatic cave fortress on a tour from Portoroz to Postojna Cave and Predjama Castle. Combining the two adjacent destinations makes the most of your time on the road, but coordinating transport with a busy sightseeing schedule can be a headache; take advantage of a flexible departure time, then relax and enjoy the view as you discover one of Slovenia’s most scenic areas.
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  • 5 hours
  • Free Cancellation
From
US$137.35
Price varies by group size
From
US$137.35
Price varies by group size

Postojna Cave and Predjama Castle from Sistiana

Postojna Cave and Predjama Castle from Sistiana

star-4.5
Visit Postojna Cave, the best-known cave in the world, and The Predjama Castle, the only preserved cave castle in Europe.
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  • 5 hours
  • Free Cancellation
From
US$137.72
Price varies by group size
From
US$137.72
Price varies by group size

Postojna Cave & Predjama Castle from Piran

Postojna Cave & Predjama Castle from Piran

Visit Postojna Cave, the best-known cave in the world, and The Predjama Castle, the only preserved cave castle in Europe.
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  • 5 hours
  • Free Cancellation
From
US$121.35
Price varies by group size
From
US$121.35
Price varies by group size

Postojna cave and Predjama castle day trip from Bled

Postojna cave and Predjama castle day trip from Bled

star-5
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.
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  • 6 hours
  • Free Cancellation
From
US$94.46
From
US$94.46

Postojna Cave & Predjama Castle - Small Group Tour from Koper

Postojna Cave & Predjama Castle - Small Group Tour from Koper

Visit Postojna Cave, the best-known cave in the world, and The Predjama Castle, the only preserved cave castle in Europe.
More
  • 5 hours
  • Free Cancellation
From
US$119.57
Price varies by group size
From
US$119.57
Price varies by group size

Private Postojna Cave & Predjama Castle Tour from Ljubljana

Private Postojna Cave & Predjama Castle Tour from Ljubljana

star-5
Tick off two of Slovenia’s top attractions in just one day on a private day trip from Ljubljana. Ideal for first-time visitors and time-pressed travelers, this tour guarantees the undivided attention of a private guide and grants yu access to one of the largest cave networks in the world. Plus, all admission tickets are included so you won’t be surprised by any hidden charges.
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  • 6 hours
From
US$159.43
Price varies by group size
From
US$159.43
Price varies by group size

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

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

star-4
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.
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  • 8 hours
  • Free Cancellation
From
US$145.83
From
US$145.83

Postojna Cave & Predjama Castle - Shore Excursion from Koper

Postojna Cave & Predjama Castle - Shore Excursion from Koper

star-5
Postojna Cave and Predjama Castle are two of Slovenia’s most dramatic sites, but matching tours and transport to a ship’s arrival can be a logistical headache. Explore the vast, natural cave and the dramatic castle on a tour that’s tailored to your cruise schedule to make the most of time in port; you’ll be on your way to the scenic karst landscape an hour after the ship docks.
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  • 5 hours
  • Free Cancellation
From
US$119.57
Price varies by group size
From
US$119.57
Price varies by group size

Full-Day trip from Ljubljana to Postojna Cave, Postojna Castle and Piran

Full-Day trip from Ljubljana to Postojna Cave, Postojna Castle and Piran

star-1
The tour starts in Ljubljana, first visiting Postojna Cave then we visit the Predjama Castle, after Predjama Castle we visit Piran city at the coast of Slovenia for three hours Trips are in new Mercedes Benz Vito Blutec Air condition Insurance for passengers
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  • 8 to 10 hours
  • Free Cancellation
From
US$59.78
From
US$59.78

Postojna Cave and Lake Bled with Lunch from Ljubljana

Postojna Cave and Lake Bled with Lunch from Ljubljana

star-5
Tick off two of Slovenia’s top attractions in just one day during a day trip to Postojna Cave and Lake Bled from Ljubljana. Ideal for first-time visitors, this tour allows you to skip the hassle of car hire and lets you cover more ground in less time. Plus, letting someone else drive gives you more time to focus on the scenery.
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  • 12 hours
  • Free Cancellation
From
US$156.76
From
US$156.76

Frequently Asked Questions

The answers provided below are based on answers previously given by the tour provider to customers’ questions.
Q:
What are Postojna Cave hours of operation?
A:
Postojna Cave hours of operation: Daily. Buy tickets in advance on Viator. If you book with Viator, you can cancel at least 24 hours before the start date of your tour for a full refund.
Q:
What's the best way to experience Postojna Cave?

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(888) 651-9785
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