Tours/Koper/Tour to Postojna and Predjama Castle from Koper
Viator · group up to 45 pax

Tour to Postojna and Predjama Castle from Koper

4.9(54)Koper1 hour
VIATOR4.9(38)TRIPADVISOR4.8(16)

Description

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.

Tour Options

Postojna cave and Predjama castle from Koper
  • Bus

Itinerary

Admission included180 min

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.

Admission not included45 min

Photostop at only stone carved castle in the world.

Highlights

Predjama Castle photostop
Transportation with AC van/minibus/coach
Driver/guide
Port pickup and drop-off
Entrance fee to Postojna Cave

What's included

Included
Predjama Castle photostop
Transportation with AC van/minibus/coach
Driver/guide
Port pickup and drop-off
Entrance fee to Postojna Cave
Not included
Food and drinks
Gratuities

Traveller Ratings

4.9
54 reviews
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47
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6
3
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Important Information

  • 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

Reviews(54)

S
Steven_B
August 13, 2026
A ride more exciting than expected.

The well lit train ride was longer than expected (about 10 minutes) and was more engaging than any amusement park in ride. The path inside the cave was nicely paved with hills and bridges. Petra was our excellent tour guide!

H
hotblue
August 12, 2026
Amazing experience. Must see!!

Amazing experience. Petra was a really knowledgeable guide and very friendly. A comfortable bus took us from our cruise ship to the cave entrance where we given our tickets by Petra (guide). This is a 45 mins drive. The cave involves a 7-10 min train ride which is a highlight by itself. The train goes through a few very narrow tunnels then into large open areas giving a glimpse of what is to come. Then you get off the train and walk through the caves for app 1.5km with an audio device explaining what you are seeing. It is truly an impressive sight. Don’t walk too slow since you can lose track of time. We were given 2hr to self explore the caves and it was just enough time with 2 kids. The caves end at a souvenir store. There is a paid bathroom (€1) as well. Then you get back on the train to exit the caves. Take this into consideration when time planning. Once outside there are a many restaurants and souvenir shops and free bathrooms. There you will meet the guide for the 15mins bus ride to the castle stop. This involves a 10-15 mins opportunity to take some beautiful photos of the castle from a distance. Then back on the bus for a 45 mins drive back to the cruise port.

T
Tricia_H
July 30, 2026
Amazing cave and fun photostop

The cave was amazing! I have never seen anything like that before. Well worth the trip. The photostop at the castle was fun but I wish I found a tour you could go into the castle.

E
Exploration642484
July 26, 2026
Great caves not enough time for castle

The trip was a great trip to spend a couple of hours since we were on limited time due to cruise. The caves were amazing and so beautiful. Be prepared and take sweater/jacket it’s cold. There is big crowd to go in but you walk at your pace. As far as castle wish we could have gone in. Knew we would take pics outside but no time inside. So would request for a tour that lets you go inside and look around. Our guide Rachel was very knowledgeable and funny. She gave us details of Slovenia. Would recommend it more if they included time in castle.

J
Joshua_G
July 12, 2026
Postojna Is a hike but SO worth it

Postojna Is remarkable. Well worth the trip and price of admission. The Castle is fine, but you don’t really have much time to explore there. Tour guide and transport was excellent. Pro tip: bring a sweater cause it gets chilly in that cave.

M
molixk
July 2, 2026
The cave is everything!

The caves are the most amazing and beautiful natural site! Pictures can't do it justice. If you have this tour as an option, go for it! The castle was okay, we just spent 15 minutes there, and couldn't go inside, but it was a fine photo op. Be prepared for the 50 degrees Fahrenheit in the cave!

C
Curiosity12624012131
June 29, 2026
Caves on the railroad cars are a must do!

The train ride into the caves, as well as the cave tour was wonderful. Everything closes early. We had the last train ride in and everything was closed when we got out. I would advise you getting in at least at 4 o’clock. It was great fun to send a postcard from deep in the caves. Our tour guide was great.

K
Kelly_V
June 2, 2026
Caves were awesome. Not...

Caves were awesome. Not much time at the castle. Overall a great tour, the tour guide on the bus tried to give some history and information on Koper.

V
Vanessa_L
May 31, 2026
Wow! Gorgeous caves.

So so cool! Really enjoyed this! Very organized, experienced tour guide, great driver too. Includes entrance to the caves. I wish we got to stay a bit longer at the castle to go inside, it was only 15 min stop.

L
Lisa_S
October 17, 2025
Must see!

Dress 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.

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