Central Slovenia
Cave Tours

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Our most recommended Central Slovenia Cave Tours

From Ljubljana: Postojna Cave & Predjama Castle Tour

1. From Ljubljana: Postojna Cave & Predjama Castle Tour

Admire the stalagmites inside Postojna Cave! Meet your guide in central Ljubljana and settle into your ride as you set out for two of Slovenia’s most enchanting wonders, Predjama Castle and the Postojna Caves. First, go with your guide to the Postojna Caves and uncovers the fascinating world of an unusual amphibian known as the blind salamanders or referred to locally as “human fish”. Explore this enthralling underground world, while your guide explains the geologic forces that created them. Next, head to the Predjama Castle, a storybook castle wedged beneath a dramatic stone archway and against a cliff. Admire the unique Renaissance architecture of the castle located in south-central Slovenia, in the historical region of Inner Carniola. From the castle, enjoy views of lush, rural Slovenia. After that, sit back and relax on your ride back to Ljubljana.

Ljubljana: Slovenia Day Tour to Bled, Postojna, and Predjama

2. Ljubljana: Slovenia Day Tour to Bled, Postojna, and Predjama

You will start your small-group tour with a pickup from your central Ljubljana hotel, and depart for Lake Bled in an air-conditioned minivan. On the 1-hour journey, you can admire rural Slovenia and listen as your guide describes the glacier-formed lake and the legends that surround Bled Island, the church-topped islet in its center. On arrival, you can drink in the views of the lake and towering mountains, and gaze up at medieval Bled Castle, the fortress perched high on a cliff above the water. Then, you will ride a two-oared pletna to the island and enjoy free time to explore, visit the Church of the Assumption of Mary or sample some scrumptious potica at the island cafe. Next, you will be driven up to Bled Castle and can delve inside the red-turreted fortress. Absorb the bird's-eye views of the lakes from the walls and visit the museum to chart the castle’s story from its roots in the 11th century. You will then return to the lakeside for free time to walk around, and if you wish, sample a local specialty, kremšnita vanilla cream cake. Then, after a break for lunch, travel onward to your next stop, Predjama Castle. You can marvel at this remarkable cliffside castle and hear how it was extended through the centuries after being built in 1202. Then, you can choose either to explore its stairways and chambers on your own, or with a guide. Lastly, you will continue to nearby Postojna Cave, Slovenia’s most-visited tourist attraction. Ride the mini-train into the depths of this subterranean network and then follow a guide through its eerie caverns. Ogle the bizarre stalactites, stalagmites, and rock formations and hear tales of how the caves were created and the rare amphibians that live in its underground rivers — the blind salamanders known as 'human fish.' Then, return to your minivan and end your tour in Ljubljana, with a drop-off at your hotel.

Postojna Cave & Predjama Castle Half-Day Tour

3. Postojna Cave & Predjama Castle Half-Day Tour

On the afternoon of your tour, you will meet your guide at your hotel in central Ljubljana. After a short meet and greet with your driver/guide you will set off in an air-conditioned minivan for Predjama Castle, located roughly 1-hour away in the historical region of Inner Carniola. As you travel, hear how the castle sits 400 feet (123 meters) above ground on a cliff. On arrival, choose to tour the fortress either with your guide or independently. Explore the chambers, linked by winding staircases, and marvel at the collection of historical artifacts, from antique armaments to old artworks and furnishings. Learn of the infamous rebel knight, Erazem of Predjama, who lived here in the 15th century, and hear about the tunnel of Erazem, the secret passage used when the castle was besieged. After around an hour, continue to Postojna Cave, roughly 15-minutes away. Part of one of the Slovenian Karst region’s many cave systems, Postojna Cave is Slovenia’s most-visited tourist attraction and the largest cave in the country. Board the mini-train and travel into the depths of the 13-mile network, and then, with one of the cave's guides, set off on foot to explore its eerie caverns. Admire the otherworldly stalactites, stalagmites and rock formations, and discover how the caves were created. Hear, too, how the cave is home to some 100 different animal species, including the blind salamanders, known as ‘human fish,’ that live in its underground rivers. Following your 1.5-hour tour, head back above ground and travel back to Ljubljana, where your tour concludes with a drop-off at your hotel.

From Trieste: Postojna Cave & Predjama Castle

4. From Trieste: Postojna Cave & Predjama Castle

Postojna Cave, the queen of all caves, 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 (limestone) monuments. This is the only place in the world where the underground landscape can be traversed on an electric train and where you get to meet this underground kingdom’s most famous inhabitant – the proteus (olm) – up close. A fantastic web of tunnels, passages, galleries and halls, astonishing diversity of karst features, as well as easy access are certainly the main reasons for the popularity of the cave and a large number of visitors (more than 36 million of them in over 200 years). The Predjama Castle reigns over the surrounding area, not far from the Postojna Cave, in the idyllic village of Predjama. This picturesque, magnificent, defiant, mysterious, and impregnable castle has been perched up in the middle of a vertical 123-meter high cliff for more than 800 years. Its romantic appeal is further emphasized by the idyllic Lokva River, which disappears into the underground world deep down below the castle. As the only preserved cave castle in Europe, the Predjama Castle offers a unique insight into the building techniques and resourcefulness of people in the Middle Ages, who were looking for and found a safe harbor for themselves right at the entrance of the cave. During a siege that took place in the 15th century, the castle provided a refuge for its best-known and most notorious owner – Erazem of Predjama. The legend of the courageous robber baron Erazem, who remained undefeated until one of his servants betrayed him, is still in people’s minds, inspiring and alluring as ever. It was this safe abode of his which helped the brave knight resist the besiegers without much difficulty for more than a year. Let your guide take you through these unforgettable sights for an ideal day excursion! 

Bled or Ljubljana: Postojna Cave & Predjama Castle Half-Day

5. Bled or Ljubljana: Postojna Cave & Predjama Castle Half-Day

Depart Ljubljana or Bled and journey to the underground world of Postojna Cave, the most popular karst cave in the world. Upon arrival, take a guided tour of the cave system by electric train, and then walk through the beautiful passages and chambers of spectacular drop stones, pillars, limestone curtains and other extraordinary natural wonders. Continue to the idyllic village of Predjama and visit the Renaissance castle built within the mouth of a cave. Admire the fairytale setting and architecture of the medieval fortress of Predjama Castle, famous as the former seat of the knight Erazem Lueger. Marvel at the dramatic setting among the hills of the Inner Carniola region. Learn the legend of Erazem Lueger, a renowned robber baron sometimes referred to as the "Slovenian Robin Hood." Hear other local folk tales and traditions and stop for some local spirit tasting in Postojna, before the journey back to Ljubljana or Bled.

From Ljubljana: Postojna Cave & Lake Bled Trip with Tickets

6. From Ljubljana: Postojna Cave & Lake Bled Trip with Tickets

Discover 2 of Slovenia's best natural attractions with a guide. Visit the charming town of Bled with its stunning lake and marvel at the stalagmites inside Postojna Cave. Meet your guide at your hotel in central Ljubljana and settle into your ride as you set out for 2 of Slovenia’s most enchanting natural wonders, Lake Bled and Postojna Cave. First, visit the charming resort town of Bled with its breathtaking lake. Enjoy a sightseeing tour of the best sites with your guide. Take a trip on the emerald green waters of Lake Bled in one of the traditional 'Pletna' boats to discover Slovenia's only island and see if ringing the church bell grants your wishes. Then, enjoy a pleasant stroll around the lake, climb up to the mysterious Bled Castle, or treat yourself to a piece (or 2) of delicious Bled cream cake. Enjoy lunch at a local restaurant before heading to the second natural wonder, Postojna Cave. Enter a mysterious world of underground passages, caverns, and great halls, decorated with dripstones, translucent curtains, and pillars in fascinating shapes and colors. Return into the daylight and discover the astonishing Predjama Castle, the seat of the robber knight Erasmus. Learn about its history from your guide and admire views of lush, rural Slovenia. After that, sit back and relax on your ride back to Ljubljana.

Ljubljana or Bled: Lake Bled & Postojna Cave Day Trip

7. Ljubljana or Bled: Lake Bled & Postojna Cave Day Trip

Just 45 minutes north of Ljubljana, there lies the magical Alpine resort, Bled with its magical lake. Ascend the old castle, perched on top of a steep cliff above the lake, and take some time to enjoy spectacular views of the surroundings from the castle's terraces. A boat ride on a ‘Pletna’ – a traditional boat made by locals – is mandatory when visiting Bled. Reach the only true island in Slovenia, ring the fortune bell, and soak up the sun, peace, and fresh mountain air. Then it's time to head south to discover the mysteries of the Slovenian karst in the Postojna cave. The guided tour of the cave takes you on a ride by electrical train and a walk through the beautiful passages and chambers with spectacular drop stones, pillars, limestone curtains, and other extraordinary wonders of the underground world. Afterward, enjoy tasting some local spirits in Postojna. Then, continue to the idyllic village of Predjama to enjoy the medieval fairytale of the amazing Predjama castle, the largest cave castle with its dramatic setting in the gaping mouth of a cavern halfway up a hillside. Learn about the legend of a famous knight, Erasmus – the ‘Slovenian Robin Hood’ and other local folk traditions before heading back to Ljubljana.

From Ljubljana: Škocjan Caves and Karst Region

8. From Ljubljana: Škocjan Caves and Karst Region

Discover the mysterious beauty of the Regional Park of the Škocjan Caves. Explore the caves and discover secret underground waters. For over a million years this underground flowing water has formed a wonderland of mysterious passages. Enter spacious subterranean halls and enormous underground canyons. After your visit to the caves, travel down a scenic road to the charming medieval village of Štanjel. Admire the bell tower of the Gothic St. Daniels’ church, which has become the symbol of the town. Stroll down the cobblestone streets lined with stone houses. Walk through the elegant Ferrari’s Garden which extends over the sunny slopes.

Zagreb: Day Trip Postojna Cave, Predjama Castle, & Ljubljana

9. Zagreb: Day Trip Postojna Cave, Predjama Castle, & Ljubljana

Make the most of your time in Zagreb with a private day trip. Ride an electric train through Postojna Cave, learn about the history of Predjama Castle, and spend some time exploring the largest city of Slovenia, Ljubljana. Be picked up from your accommodation by your guide. Sit back and relax as you enjoy the scenic ride through the countryside on the way to Postojna Cave. Admire the impressive stalagmites and stalactites formations and ride on an electric tourist train through the tunnels.  See a cave-dwelling aquatic salamander at the conservation aquarium in the cave before heading to Predjama castle. Capture some pictures of this Renaissance castle which stands at the mouth of a cave. Hear about the history of this castle and take a stroll through its hidden passages.  Continue to the capital city of Ljubljana. Follow your guide on a walking tour and take some free time to explore more or do some shopping at one of the boutiques. Return to your accommodations in Zagreb.

From Koper: 5-Hour Tour to Postojna Cave & Predjama Castle

10. From Koper: 5-Hour Tour to Postojna Cave & Predjama Castle

Enjoy a 5-hour guided tour to the incredible Postojna Cave with a photo stop at the largest cave castle in the world, Predjama Castle. Explore the extensive Postojna cave system with cave passages over 20 kilometers (12 miles) in length on an unforgettable underground train ride.  The Postojna Cave system is the largest known cave system in the country and the second-largest accessible to visitors in the world. Postojna Caves lie under the slopes of a broad karstic limestone plateau on the eastern fringes of the Postojna basin and offer a unique opportunity to spot some of the local wildlife that lives in the cave. Just ten minutes far away from Postojna caves is Predjama castle, another jewel of the Karst region. Predjama Castle pressed into a huge cavern hollowed out of the high, flat rock face, above the karstic swallow hole of the Lokva stream. The castle boasts as the largest cave castle in the world. It is a truly unique sight and will make for an unforgettable sight, not to mention a great photo opportunity.

Frequently asked questions about Central Slovenia Cave Tours

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What people are saying about Central Slovenia

Overall rating

4.8 / 5

based on 46 reviews

Everything was perfect. Our driver, Mr. Primos, with their friendliness and knowledge, made the tour an unforgettable day. The cave (the largest in Europe) with a fantastic structure, which receives hundreds of people daily. The Castle, from the twelfth century and which is in the Guinness Book, is simply incredible. A wonderful example of medieval engineering.

The guide was very helpful. It was great being picked up and driven to both locations. We got to skip the queues too which was nice. The attraction themselves were mid blowing. The caves and the castle must be seen if you're visiting Slovenia.

The Caves are amazing!! everywhere you look there's something interesting, bring comfy shoes but is a nice walk... and the Castle is very cool, you go into the cave behind

Relaxed way to visit two of Slovenia's most exciting sights with a very knowledgeable and helpful guide.

It was an amazing experience, I definitely recommend!