Postojna Cave

Queen of the Underground World

Welcome to the world's most captivating cave with magnificent cave formations and diverse fauna. Take an unforgettable ride on Postojna Cave's underground train and experience a fascinating subterranean paradise shaped by tiny droplets over millions of years.

A World-Famous Natural Marvel

Postojna Cave is the only place where you can see the most precious brilliant in the form of a cave formation and also meet the baby dragons. Just like the world above the surface, Postojna Cave boasts towering mountains, murmuring rivers and vast subterranean halls. It is a real challenge for explorers and the cradle of speleobiology.

The Breathtaking Brilliant

The magnificent five-metre-tall bright-white stalagmite called Brilliant is a symbol of Postojna Cave and the Slovenian Karst. Standing next to it is an ornament-rich column.

The water slowly dripping down the stalagmite deposits a thin layer of flowstone, giving the Brilliant its shiny white colour.

The water slowly dripping down the stalagmite deposits a thin layer of flowstone, giving the Brilliant its shiny white colour.

A One-of-a-Kind Train Adventure

Take a ride on the underground train and enjoy a 3.7-km-long journey on the world's only double-track cave railway. The wonderful Murano-glass chandeliers hanging from the ceiling of Postojna Cave's Dance Hall make for a fairytale atmosphere.

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The world's first railway in an underground cave was opened in Postojna Cave in 1872.

The world's first railway in an underground cave was opened in Postojna Cave in 1872.

Meet the Baby Dragons

Olms have been captivating people's imagination since time immemorial and legend has it that they are actually baby dragons. They remain something of a mystery even today and are considered the largest cave-dwelling animal that can go without food for up to 10 years.

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Following in the Footsteps of Famous Visitors

In 200 years, Postojna Cave has been visited by more than 38 million visitors from all over the world. The most distinguished ones have shared their impressions about the cave in the Golden Book of Visitors.

Discover the Mysterious Underground World

Are you thinking of coming for a visit? Visitors from all over the world day are dazzled by Postojna Cave day after day. Take a ride on the cave train and get ready to be mesmerised!

An Adventure for Every Visitor

Postojna Cave is open daily, including on public holidays. The cave tour, which includes a cave train ride and a walk along an easy footpath, takes an hour and a half. Each Postojna Cave tour is accompanied by tour guides, who provide visitors with tour commentary in Slovenian, Italian, English or German, presenting the cave's splendours in detail. Visitors can also use audio guides available in no fewer than 17 languages. Cave tours are suitable for all visitors, including families with young children and visitors with mobility impairments. The temperature inside the cave is constant throughout the year (10 °C), so warm clothing and sports footwear are recommended.

We recommend you read all the important information before your visit. 

Wonderland Stories

Luka Čeč – The Man Who Discovered Postojna Cave

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Subterranean Giants

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Wildlife

Baby Dragons' Secret Stories

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