1. Slovenia
  2. Ljubljana District
  3. Ljubljana
  4. Postojna Caves

Postojna Cave, Predjama Castle & Piran: Pearls of Slovenia

Product ID: 218619
Combine some of the most popular attractions in Slovenia. Spend the day exploring the enchanting Postojna cave with its underground train, mysterious Predjama castle, and charming coastal town of Piran.
About this activity
Duration: 10 hours
Starting time 8:30 AM
Printed or mobile voucher accepted
Instant confirmation
Live tour guide

Pickup included

Hotel pickup is available from most centrally located hotels in Ljubljana. Hotel pickups commence prior to departure time, we will be in touch with you via e-mail or phone to let you know your exact pickup time.
Free cancellation up to 24 hours before activity starts

Select participants and date:



  • Enjoy the adventurous ride with a train into the underground of Postojna Cave
  • Explore the amazing Predjama Castle
  • Discover the most charming town of Slovenian coast - Piran
Full description
Visit the most famous and best-known cave in the world, Postojna Cave. Starting the visit with a unique and adventurous train ride, you will have the chance to see amazing stalactites, stalagmites, galleries and magnificent halls. Prepare yourself for an underground experience and a large diversity of underground animals – including the world famous human fish (proteus anguinus).

After Postojna Cave you will visit the idyllic village Predjama and the mysterious Predjama Castle. Perched high up in a vertical 123-metre high cliff the castle is famous because of its history and mysterious tunnels. Listen to the story of the medieval noble knight Erazem of Predjama and enjoy a walk through the picturesque interior and exterior of the castle.

Continue the visit towards Slovenian coast and enjoy the charming town Piran. Walk through its narrow medieval streets wedged between beautiful houses, churches and squares. Enjoy the lively main square, named after a famous violinist and composer Giuseppe Tartini, and treat yourself with a magic gelato while relaxing by the sea.

Start your small-group tour with a pickup from your central Ljubljana hotel, and depart for the marvelous subterranean world of Postojna Cave, in an air-conditioned minivan. During your roughly 1-hour journey, admire rural Slovenia and listen as your guide explain interesting things about Slovenia and its history and the region Karst. The tour will finish by returning you to your hotel in Ljubljana via minivan. 
  • Hotel pickup and drop-off
  • Transportation in air-conditioned minivan
  • Professional English speaking guide
  • Admission to Postojna Cave
  • Admission to Predjama Castle
  • Admission to Piran city wall
What’s Not Included
  • Food and drinks
  • Gratuities (optional)

Prepare for the activity

Important information
What to bring
  • Comfortable shoes
  • Comfortable clothes
Know before you go
• Not wheelchair accessible
• Guests are recommended to wear comfortable shoes and warm clothes as the temperature in Postojna Cave is constant 9°C
• Minimum numbers apply. There is a possibility of cancellation after confirmation if there are not enough passengers to meet requirements. In the event of this occurring, you will be offered an alternative or full refund
• Small-group tour: up to 8 people per van
Customer reviews

Overall rating

4.7 / 5

based on 9 reviews

Review summary

  • Service
    4.5 / 5
  • Organization
    4.5 / 5
  • Value for money
    4.8 / 5
  • Safety
    5 / 5
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Excellent tour that allows you to visit 3 main places in Slovenia. We leave early in the morning to visit Piran, then after lunch at the Castle and to finish the caves. The guide is a really nice and easy-going guy from Slovenia. The jacket to visit the caves 9 ° C and the really suggestive 1.30 hard trip are fundamental.

August 24, 2019

A full and fulfilling day

Post-Inna limestone cave and cave castle are enough for half a day, so it is perfect for those who want to combine and go another place. At my time, I went to Piran first and enjoyed sightseeing in the city for about 2 hours with a guided walk and a free walk. The guide was kind, but the story was too long and I often wanted to go around the city. This area will depend on the person. By the way, you can enter the city of Piran with a free shuttle bus, so it's easy to go on a tour. Then move to the cave castle, where you turn around yourself with an audio guide. It's a castle with lots of anecdotes, so if you're going to go there, you should definitely listen to the explanation. There was also Japanese audio. The Post-Inna limestone cave was truly a masterpiece! I am impressed that nature is great for producing such magnificent beauty. Even while moving on the trolley, I'm still robbed. It's a bit too crowded and noisy, but sometimes it's a scratch compared to Sk

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August 15, 2019

Friendly guide

If it was a bus, it was a semi-private tour for me and another couple only. So, they took me to various places! Although it was raining, it was helpful to respond flexibly. I was also alone, but I'm glad you talked so much that I wasn't lonely.

October 3, 2019

Organized by

Slovenia Explorer

Product ID: 218619