About This Tour
Visit two of Slovenia’s top attractions in one afternoon on this small-group, half-day tour from Ljubljana. Begin at Predjama Castle, perched on a cliff high above the beautiful Inner Carniola region. Explore the chambers and stairwells and learn about the castle’s most famous resident, Erazem of Predjama. Then, continue to Postojna Cave. Ride a mini-train deep into the famous cave and tour the ethereal network of stalactites, stalagmites and caverns with a local guide. Numbers limited to eight people, ensuring a personalized experience. Postojna Cave 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 monuments and it is a must-see attraction when visiting Slovenia. You will start the tour with a unique and adventurous ride with a special train in one of the most diverse cave systems in the world, with 21 km of passages, galleries and magnificent halls, which offer an unparalleled experience of the underground world and a large diversity of underground animals – including the world-famous human fish (proteus anguinus). Beside Postojna Cave you will also have the chance to visit Predjama Castle. Our guide will show you this magnificent medieval castle perched high up in a vertical cliff in the idyllic village of Predjama. It is an interesting and romantic sight throughout the year: in the spring and summer its surroundings are abundant with blossoms and flowers, in the autumn it is clad in the colours of surrounding forests and it is at its most enchanting in the winter when the surrounding area is covered in snow.
Final price may vary. Check availability for exact pricing.
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Final price may vary. Check availability for exact pricing.
TopTours Insights
Ljubljana: Postojna cave & Predjama castle small group tour
This 5.5-hour tour takes you by comfortable van to the Postojna Caves and Predjama Castle. You'll explore dramatic underground formations and a medieval castle built into a cliff face. It's ideal for those interested in natural wonders and historical sites.
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What's Included
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Additional Information
Meeting Point
opposite City Hotel
Special Instructions
Your tickets for all attractions on this trip are reserved and will be available for you at the ticket counter. There is no need to purchase them in advance. You can conveniently pay with either a card or cash. What to bring: * Comfortable walking shoes and clothing: These are crucial for exploring cities, nature, and historical sites. * Light jacket, windbreaker, or umbrella: Slovenian weather can change quickly, even in summer. * Refillable water bottle: Slovenia is known for its clean, drinkable tap water. * Warm layer for cave visits: Postojna Cave remains cool, with temperatures between 9–12°C (48–54°F) year-round.
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Tour Operator
Gray Line Slovenia Explorer
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Guest Ratings
Total review count and overall rating based on Viator and Tripadvisor reviews
Based on 161 verified reviews
Average rating
Frequently Asked Questions
Common questions about Ljubljana: Postojna cave & Predjama castle small group tour
Who operates this experience?
This experience is operated by Gray Line Slovenia Explorer, a local sightseeing provider.
What's included?
This tour includes Central Ljubljana meeting point, Comfortable transport by air-conditioned minivan, and Professional English speaking guide . All inclusions are provided by the tour operator.
How long is this tour?
The experience lasts approximately 5.5 hours, giving you time to fully enjoy your chosen activity.
Can I cancel this tour?
Yes, you can cancel up to 24 hours before the scheduled departure time for a full refund.
What should I bring?
We recommend bringing comfortable walking shoes, a camera, and weather-appropriate clothing. All necessary equipment is provided.
Will I receive instant confirmation?
Yes, you'll receive instant confirmation when you book.
Is this tour worth it?
Yes, this experience has a 4.8-star rating based on 161+ reviews, making it a highly rated option.
What to expect on this tour?
This sightseeing experience lasts approximately 5.5 hours and includes all necessary equipment and guidance. You'll have access to Central Ljubljana meeting point and more.
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Book Ljubljana: Postojna cave & Predjama castle small group tour
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