• Location: Ljubljana, Slovenia
  • Duration: 6 hours 30 minutes (approx.)
From USD $ 87.65 View price calendar

Low Price Guarantee

Explore the fascinating network of subsurface caves during a guided tour of the Postojna Caves and Predjama Castle, leaving from Ljubljana. As you enter the two million year old caves aboard a mini-train, you will learn about why this is one of Slovenia’s most popular attractions. You’ll walk with your guide and witness bizarre stalactites, stalagmites and other rock formations that make up the 13-mile-long (21 km) system of underground caves. You’ll also venture to the enchanting Predjama Castle, a famous castle that still clings to Slovenia’s limestone cliffs.


  • Travel along the biggest Slovenian cave systems
  • Ride by electrical train through majestic cave halls
  • Learn about the caves 'underworld system'
  • See one of the most interesting baroque castles

What You Can Expect

Postojna Caves and Predjama Castle Tour from Ljubljana

White Hall at 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 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.

Customer Reviews

Patricia E

5 star rating: Highly Recommended July 2018

I really had fun. This is a good activity to do from Ljubljana before one begins a tour of the Adriatic area.

Teja G

5 star rating: Highly Recommended June 2018

WOW! Like literally one of the craziest caves I've ever experienced, the guide took us to both locations and provided us a brief history in english. Once you get to the locations, a local guide for the locations takes over. Simply just trying to get to the locations and paying tolls will be crazy enough, so save your time and money and just do this which provided me transportation to and from the hotels as well as all tickets and tolls. So once you get to the caves, we had a local english guide. Please note the group sizes are gigantic so if you are trying to learn about the caves push yourself towards the front of the group. Through out the caves tour i was able to take pictures, and video, there were times the lights in the cave went out, and i needed to use the flashlight app on my phone to see. For the most part the cave was easily walk-able not that many steps. Once your done with the train ride, the walking starts, and you end with a train ride, where you can see the notorious cave salamander which can survive without food for 10 years! Once you are done with the castle, a self guided audio tour starts from the Predjama castle. It is so cool to see this castle, as it is built in front of a cave, and there is an old castle inside the cave. SO you can walk through all the rooms, and pictures and videos were not a problem. I even stopped by the stalls outside and got some local wine for 5 euro and some souvenirs, and it was great! Overall this tour is the place almost all tourists are going too, so be ready for big groups, but it is very informative, and helps you appreciate the land and layout, of what used to be!


5 star rating: Highly Recommended April 2018

Awesome Tour. Our tour guide was fantastic. The caves were amazing and the castle was great to see in person.

Susan S

5 star rating: Highly Recommended March 2018

This tour is a must if visiting Slovenia. we had booked a private tour for three people. The driver arrived on time and was friendly and engaging, offering informative information on Slovenia and the places we were visiting. The car was clean, comfortable and spacious. Really enjoyed visiting the caves and castle and would highly recommend this tour.


5 star rating: Highly Recommended November 2017

This was a fantastic trip Eva was knowledgeable and charming and the vehicle was very comfortable. Highly recommended.

Paul H

5 star rating: Highly Recommended November 2017

Excellent trip with a fantastic guide,she was lovely and very knowledgeable.Would definitely recommend this trip.

Xochitl B

5 star rating: Highly Recommended September 2017

Wonderfull experience, both sites are incredible to visit!

wendy o

5 star rating: Highly Recommended September 2017

This was a very interesting tour, well planned out. Eva was a great guide with lots of good information about the castle and caves. It was a great day

Tony G

5 star rating: Highly Recommended August 2017

Barbara was amazing. She is a great host and knew all the quirks of this trip. What astonishing caves. Unbelievable.

Ronny V

5 star rating: Highly Recommended August 2017

Probably one of the coolest guided tours I ever went on. As we were only two participants the guide picked us up in BMW M series and drove us to the castle and the caves. A peculiar but very funny and knowledgeable dude, he gave us extensive insight into the tour attractions as well as into the Slovenian country and history. Flawlessly on schedule, excellent phone and mail support and they even provided me with a coat to visit the caves as I forgot mine. If you feel like booking a tour, look no further.

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