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A Slovenian Karst classic awaits! Explore two of Slovenia's most stunning treasures: Postojna Cave, Europe’s most visited cave, and Predjama Castle, the world’s largest cave castle.
Begin with Postojna Cave, a 24 km (15-mile) underground marvel featuring breathtaking stalactites, stalagmites, and a magical electric train ride through its winding passages. Spot the rare "human fish," a symbol of the cave's unique biodiversity.
Just nearby, Predjama Castle rises dramatically from a sheer cliff face. This 13th-century fortress blends nature and history, with grand halls, secret tunnels, and legendary tales of knight Erasmus. Enjoy spectacular views and capture unforgettable moments of the surrounding landscape.
Together, these iconic landmarks offer an adventure combining nature's wonders with Slovenia’s rich heritage. Flexible tours cater to your needs, promising an experience as memorable as the journey itself!
Infants and small children can ride in a pram or stroller
Service animals allowed
Public transportation options are available nearby
Infants are required to sit on an adult’s lap
Specialized infant seats are available
Suitable for all physical fitness levels
For a full refund, cancel at least 24 hours before the scheduled departure time.
Private transportation
WiFi on board
Bottled water
All Fees and Taxes
Air-conditioned vehicle
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Postojna Cave
Postojna Cave in Slovenia is a mesmerizing underground wonder, known for its breathtaking stalactites, stalagmites, and vast chambers like the Concert Hall. Visitors can take an electric train ride deep into the cave, followed by a guided walking tour to explore its intricate formations and learn about its geology. Highlights include the famous "Brilliant" white stalagmite and the rare olm, a blind aquatic salamander. Nearby attractions, like Predjama Castle, make it a perfect destination for nature and history enthusiasts.
Predjama Castle
Predjama Castle in Slovenia is a stunning medieval fortress built into a sheer cliff, blending seamlessly with its natural surroundings. This unique castle, with its dramatic location, features hidden tunnels, medieval furnishings, and a rich history of sieges and legends, including the story of the rebellious knight Erasmus. Visitors can explore the castle's interior, admire its engineering marvels, and enjoy panoramic views of the surrounding countryside. Its proximity to Postojna Cave makes it an excellent addition to any itinerary.
Pickup included
1 review
Total reviews and rating from Viator & Tripadvisor
kristinap141,
Jun 15, 2025
- Review from Tripadvisor
Amazing tour guide. Very pleasant person with a lot of knowledge! He showed us best places of this beautiful courntry. Cave was spectacular, and very close to the castle. We loved our tour.
Operated by Sigismundi Luxury Adventures