Private Tour
Tour to Postojna and Predjama Castle from Koper
Overview
Available languages
5 hours
Mobile ticket
In this 5 hours long tour, you will visit the most popular attraction in Slovenia! Postojna caves is one of the kind, not just in Slovenia, but also in Europe. Explore fascinating underground systems and learn more about this natural phenomena. You enter and exit the cave with the small electric train and proceed your way by foot in-between.
Just a few minutes drive from the caves, there is another magnificent place - Predjama castle. This remarkable stone-cave built castle will take you back to medieval times and make your excursions memorable. Predjama offers one of the best photo stops opportunities in Slovenia.
When visiting the cave, be sure you are dressed comfortable with good walking shoes and dressed in layers.
Additional Info
Travelers should have at least a moderate level of physical fitness
Child rate applies only when sharing with 2 paying adults
Children must be accompanied by an adult
A minimum of 2 adults and maximum 15 people per booking is required
At time of booking, Cruise ship passengers must provide the following information at time of booking: ship name, docking time, disembarkation time and re-boarding time
May be operated by a multi-lingual guide
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
What‘s Included
Predjama Castle photostop
Transportation with AC van/minibus/coach
Driver/guide
Port pickup and drop-off
Entrance fee to Postojna Cave
Food and drinks
Gratuities
What To Expect
Postojna Cave
Get prepared fort he most visited attraction in Slovenia. Postojna caves are magnificent underground system with most exquisite chambers, halls, galleries, stalactites and stalagmites. You will enjoy in breathtaking train ride on the part of the visit, and the most part you will enjoy in underground landscape on your own, with explanations of the guide. Don't forget to visit the only kind of Human fish in the world, who choosed it's home just in this cave! The tour in the caves takes approximately 1 ½ hour. Just few minutes away, there awaits you Predjama castle, beautiful stone-carved fortress, one of the kind on the world. The beautiful sight over the castle, will take you back into the history and make you imagine all the knights on the horses, strolling around the area and protecting their hideout. It is amazing setting to take photos in surrounded green landscape and end your journey.
Predjama Castle
Photostop at only stone carved castle in the world.
Options
Postojna cave and Predjama castle from Koper
Bus
Reviews
45 reviews
Total reviews and rating from Viator & Tripadvisor
Must see!
Lisa S,
Oct 17, 2025
- Review from Viator
5.00Dress in layers. It is a out 50 degres Fahrenheit. So glad we went for our one day cruise port. The guide had a large bus and was standing next to a faded yellowish light orange flag near cyclone fence. The bus ride was nice...she gave facts about Slovenia. The caves are well run and if you have trouble walking they will let you remain on the open air train to go into the cave and back out. If you are in a wheel chair you could do it too...double check if they can when you onto the train. There are handrails throughout with no steps within the cave system. Smooth concrete pathways too. It is also well lit which they boast about with their audio guide. It comes in various languages. The tour first has about a fifteen minutes open air train ride. If you are really tall watch your head on the train ride. Then, there is about a 45minute walk with an audio guide. Ceilings are very high generally and well lit. It does have some humidity. Beautiful sights to see. Well worth seeing. Handrails throughout. Then it's back on the train for about 15 minutes to get back out. The bus and guide were ready when they said. There are obvious restrooms there too. These were the best caves we ever went into. I highly recommend seeing them. We also went to lake bled before....but if you had to choose one excursion the caves I recommend seeing first.
Great experience! Highly...
mandigaffer,
Oct 17, 2025
- Review from Viator
5.00Great experience! Highly recommend for anyone visiting the area. Bus was comfortable and tour guide was very knowledgeable.
Level of exercise
jacqueline k,
Oct 16, 2025
- Review from Viator
5.00If you have any mobility issues this is not for you! The description never said anything about walking uphill and down in the cave. I think everyone should know that so they know! It should have been rated hard!
Very well organized,...
Betsy R,
Sep 30, 2025
- Review from Viator
5.00Very well organized, comfortable bus ride to cave and castle. Helpful and knowledgeable tour guide..
Fantastic experience
LINDA M,
Sep 26, 2025
- Review from Viator
5.00Amazing! Totally exceeded our expectations Our guide Rastka was very knowledgeable about the history of the caves and the region. The caves were unbelievable! The train took us down to the main area so that we could walk around at our own pace. It was beautiful.. almost indescribable. Highly recommend!
Nice Caves
Edhongo7555,
Sep 26, 2025
- Review from Tripadvisor
5.00My tour guide (Rasa) was super nice. She explained a lot of history of Koper. Very pleasant and informative. The caves were amazing (10 degrees colder than ambient, so bring a jacket)
Best value and amazing sights
Karina H,
Sep 26, 2025
- Review from Tripadvisor
5.00An amazing tour. We did this off our own planning from our cruise. It was perfect. Our guide was super informative along the way from the port to the caves and castle. The caves are absolutely amazing!!
Amazing caves
Alina C,
Sep 25, 2025
- Review from Viator
5.00Amazing! A fantastic experience riding on the train which had a little bit of speed but not a like a roller coaster. A good part of the tour is walking up and down slopes on wet paved walkways but still very safe with railings to hold onto. Walk at your own pace. As for the tour operator, it’s probably a shorter drive to take it from Trieste instead of Koper. Wished we had more time and went into Predjama castle because it’s different than other castles. Leave some time to visit Koper old town
Excellent Service
cydrial97,
Sep 22, 2025
- Review from Tripadvisor
5.00Excellent excursion. The Nero guide was perfect. Times were as necessary and transfers well coordinated. The cave is spectacular and the castle very nice
Organized, Informational, Mystical
Joshua H,
Sep 20, 2025
- Review from Viator
5.00As you walk on the bus, you feel welcomed. Andi is a masterful spokesperson for the Slovenia culture and also takes time to meet guests personally during your ride to the caves/castle. Regarding the caves/castles themselves, you'll never see anything like either of these. Cliffside castle has a unique history and caves are grand with a train underneath that feels like Hogwarts. The full trip was worth every penny and recommend it. And did I mention that the caves have 100 year old "baby dragons"?
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