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5 star rating: Highly Recommended 45 Reviews

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  • Location: Ljubljana, Slovenia
  • Duration:  6 hours (approx.)
On this day we take you to the biggest and worldwide known Slovenian cave system - the Postojna caves. A two million years old and 21 km long system of subterranean caves is one of the most easily accessible network of underground caves in the world. A ride by electrical train will be followed by a guided walk through a series of cave halls with drop stones, pillars and translucent curtains that create unforgettable impressions. The underworld system is a home of the mysterious, unique and rare amphibian Proteus Anguinus, or human fish as it is popularly called here.


  • 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

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What You Can Expect

Postojna Caves and Predjama Castle Tour from Ljubljana

Admire the stalagmites inside Postojna Cave!

Only 9 km away stands one of the most interesting baroque castles of Slovenia, the Predjama castle. It hangs dramatically in the middle of 123 m high rocky cliff.

Customer Reviews

5 star rating: Highly Recommended April 2014

The Postojna caves were amazing, I would totally recommend seeing them. Predjama Castle was also very impressive and interesting. Our Viatour guide was friendly and well informed, and the tour pick-up was punctual.

5 star rating: Highly Recommended January 2014

Trip was great. Vladimir was an informative guide. Full of local info and cultural practices. Able to engage with each member of the group individually and collectively. Truly a highlight. What a treat to see the Castle. Been on my list for a long time.

From USD $ 92.66

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Tour code: 3312LJ_POS


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