Things to do in
Postojna

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Our most recommended things to do in Postojna

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.

From Zagreb: Ljubljana, Postojna Cave & Predjama Castle Tour

7. From Zagreb: Ljubljana, Postojna Cave & Predjama Castle Tour

What makes Ljubljana special is not only its cultural heritage, though it was once and still is a place of many great minds. From a traveler's perspective, it is an exceptionally good starting point for exploring Slovenia’s mountains, valleys, seasides, rivers, caves, and forests. It is well connected with other towns and basically halfway to anywhere. The old city center has a unique architectural appearance, particularly due to a felicitous combination of Baroque and Art Nouveau architecture and masterful creations by the 20th-century architect Joze Pleznik. Visit Ljubljana and walk around the city to soak up its vibrant atmosphere. Discover why the Triple Bridge is actually triple, where locals buy their food, how Napoleon was one of the most popular politicians, why Slovenia really lives with LOVE in its name, and much more. From Ljubljana, continue to the Karst region of Slovenia and discover the underground world of Postojna Cave, the most popular karst cave in the world. First, ride an underground electric train into the cave, followed by a guided tour through the beautiful passages and chambers with spectacular drop stones, pillars, limestone curtains, and other unforgettable forms.

From Koper: Postojna Cave and Predjama Castle Tour

8. From Koper: Postojna Cave and Predjama Castle Tour

Benefit from pick-up at the cruise ship terminal in Koper or Piran, and then make your way to Postojna Cave to explore one of the world's largest karst cave formations. Journey through the magical underworld by electric train to discover a fantastic network of passages and halls of astonishing diversity. Keep a look out for the resident olm – an exclusively cave-dwelling aquatic salamander. Continue to the idyllic village of Predjama to explore the imposing castle perched on the middle of a vertical 123-meter cliff. Get stunning views of the Lokva River as it disappears beneath the castle. Learn about the building techniques of the Middle Ages and hear the legend of the castle's most notorious owner, the baron robber Erazem of Predjama! Explore the story of the 15th-century siege and other historical facts about this extraordinary monument and testimony to the resourcefulness of the people of medieval times.

Rovinj: Postojna Cave and Predjama Castle

9. Rovinj: Postojna Cave and Predjama Castle

Your tour will begin with Postojna Cave, one of the best-known caves in the world and one of the world’s largest karst monuments. This is the only place in the world where the underground landscape can be traversed on an electric train and where you can meet this underground kingdom’s most famous inhabitant, the proteus (olm), up close.  From here the tour extends to the Predjama Castle which reigns over the surrounding area in the idyllic village of Predjama. This picturesque, magnificent, defiant, mysterious and impregnable castle has been perched 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 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 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. 

Ljubljana or Bled: Lake Bled & Postojna Cave Day Trip

10. 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.

Other Sightseeing Options in Postojna

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What people are saying about Postojna

Overall rating

4.8 / 5

based on 407 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.

I unbelievable. A must see for anyone in the area.