The Postojna Cave system is Slovenia's most popular tourist attraction, and within an instant of arriving, it is clear why. The cave, formed by the Pivka River, is a 20 km (12.5 mi) long karst cave, and is the most visited cave in Europe. Enter a ... 

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Tours & Tickets

Postojna Caves and Predjama Castle Tour from Ljubljana

5 star rating: Highly Recommended 58 Reviews

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 ...  Read more

Location: Ljubljana, Slovenia
Duration: 6 hours (approx.)

From USD $88.35

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