Postojna Cave & Predjama Castle excursion - Entrance fee included

Highlights

Inclusions

Itinerary

1. Predjama Castle, also known as Predjamski Grad, is a magnificent medieval fortress situated in the picturesque countryside of Slovenia, near the village of Predjama. What sets Predjama Castle apart is its extraordinary location, built into the mouth of a large cave on a towering cliff. The castle's history dates back to the 13th century when a small fortress was constructed on the site. However, the castle, as it stands today, is mainly the result of renovations and expansions carried out in the 16th century. The castle has a rich and intriguing history, filled with legends and tales of knights, sieges, and hidden passages. The architecture of Predjama Castle is a captivating blend of Renaissance and Gothic styles. Exploring Predjama Castle allows visitors to immerse themselves in the medieval atmosphere, walk through its ancient corridors, and imagine the lives of its past inhabitants.

   2 hAdmission included

2. Postojna Cave, located in Slovenia, is a mesmerizing natural wonder that attracts numerous travelers from around the world. Upon entering the cave, visitors will be immersed in a breathtaking underground world of stunning geological formations, vast chambers, and intricate tunnels. The train ride begins near the entrance of Postojna Cave. Visitors board a small electric train that is specially designed to navigate the cave's narrow passages. During the train ride, visitors have the option of listening to an audio guide or a guide's commentary, available in multiple languages. This provides valuable information about the cave's geological wonders, history, and the unique ecosystem found within. After a captivating journey through the cave, the train eventually returns to the starting point near the entrance. From there, visitors can continue their exploration on foot, exploring more of the cave's wonders at a leisurely pace.

   3 hAdmission included

Cancellation

Free cancellation up to 24 hours before the experience starts, for a full refund.

Reviews

Ratings come from 48 reviews collected by our booking partner. They are travellers' own words, in the order they were written — never reordered to flatter the experience.

Showing reviews written in English.

• 5Amazing Caves and Castle

  The most amazing caves we've ever seen!! The castle waa so full of history. Both places were clean and organized. The Slovenians run a very efficient system.

  Ivette_KOctober 2026via Viator

• 5Great Tour

  Small group (there were actually just the two of us) was the way to go! Quite ride and we had plenty of time to enjoy the venues. Highly recommended. David Petan was our guide and he did a wonderful job!

  Gail_BSeptember 2026via Viator

• 4Nice Day in Slovenia I

  Caves were unbelievable, and the castle is great. Just wish the castle was a little bit more original and didn’t have so many modern tweaks to make it tourist friendly kinda takes away from the authenticity of the time period. We had a little misunderstanding of the time of the tour in the beginning, but after a couple hours on the phone with Viator, it was figured out, and they rectified the misunderstanding and took us later in the day. The driver and guide was a nice guy, but his speedometer hit 157 km which is high 90s in mile per hour. I understand he knows the roads really well but everyone in the car was a little nervous.

  Lloyd_PAugust 2026via Viator

• 5David was an outstanding...

  David was an outstanding guide for our Postojna Cave and Predjama Castle tour. He was flexible with our group’s pace, clearly knew the history inside and out, and genuinely went above and beyond to make sure we got the most out of both stops. He made the drive between sites just as enjoyable as the cave and castle themselves, sharing context and stories along the way rather than just shuttling us between stops. If you’re booking this tour, ask for David, he elevated the whole experience

  Eric_HAugust 2026via Viator

• 5Great way to spend a day;...

  Great way to spend a day; the castle was very interesting; the cave and train ride is spectacular but come prepared with a coat because it is cold in the caves

  Andrew_LJuly 2026via Viator

• 5Cave

  This was one of the highlights of my time in Slovenia. Postojna Cave is absolutely breathtaking—photos don't do justice to the scale and beauty of the underground formations. Predjama Castle is equally impressive, with its incredible setting built directly into the face of a cliff. Together they make for an unforgettable day. What really made this tour exceptional, though, was our guide. He was knowledgeable, engaging, and, most importantly, incredibly flexible. He went out of h his way to accommodate the group's interests and pace, making sure everyone had a great experience rather than rushing us from one stop to the next. That personal touch made all the difference. The transportation was comfortable, everything was well organized, and having the entrance fees included made the day completely hassle-free. If you're visiting Slovenia, I highly recommend this tour. It's an outstanding way to experience two of the country's most iconic attractions. Five stars!

  Terrence_OJuly 2026via Viator

Know before you go

How it compares in Trieste

• Its from-price is 18% above the median of the 47 day trips we list in Trieste.
• Its length is typical for the group.
• By number of reviews it ranks 6 of 47.
• The operator lists free cancellation on it.

About Trieste

Trieste is an Adriatic port on Italy's border with Slovenia, a city of Habsburg-era palaces, old coffeehouses and a great square that opens onto the sea.

Trieste was the Roman town of Tergeste and became the main seaport of the Habsburg empire after it was declared a free port in 1719. Its grand centre dates from that period: Piazza Unità d'Italia, a vast square of palaces with one side open to the water, the Canal Grande, a short canal lined with cafés and a church, and the grid of the Borgo Teresiano. Above the old town, the cathedral of San Giusto and a castle crown a hill, with a Roman theatre below.

Top-ranked sights in Trieste: Piazza Unità d'Italia (Piazza Grande), Miramare Castle (Castello di Miramare).

See all 209 experiences in Trieste