Must-See Wonders
Start uncovering the Green Karst through its greatest attractions, leading you into a landscape of forests, extraordinary karst phenomena, legendary castles, and unforgettable tales.
The underground world amazes with magnificent halls, subterranean lakes, river confluences, and unusual dripstones that nature has been shaping for millions of years. Slovenia has more than fifteen thousand caves. Twenty-two of them are arranged for visits, and the largest number is open right here in the Green Karst.
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Cave under Predjama Castle
The second longest tourist cave in Slovenia stretches under the picturesque Predjama Castle. Cave under Predjama Castle winds through four levels connected by mysterious tunnels. The tunnels are more than 14 kilometres long, witha 700-metre section open to visitors.
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Planinska cave with the confluence of underground rivers
On the southern edge of Planina Field, in the immediate vicinity of Ravbar Tower, is one of the most magnificent karst caves in Slovenia. The almost 7km long water cave contains one of the largest underground confluences in Europe. This is where the river joins Rak from Rakov Škocjan and the river Pivka from Postojna Cave. Together they merge into the river Unica.
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Pivka Cave
Enter the underground world by descending into a deep chasm. 317 steps lead you 65 metres deep into the cave, which was formed by the Pivka river. The unusual entrance to the cave is right next to the restaurant at the Pivka jama campsite. There is a 2-kilometre-long trail for sightseeing tour.
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Black Cave
Visit this cave to experience cave passages that are a little more challenging.
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UNESCO Škocjan Caves
Just a stone's throw from the edge of the Green Karst, visit the famous Skocjan caves, which were the first Slovenian caves to be included on the UNESCO World Heritage .
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Postojna Cave
Enter the most visited tourist karst cave in Europe and one of the world's greatest natural attractions. Take a 3.7km ride through the cave with its legendary underground train.
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Križna Cave
One of the most beautiful water caves in the world is certainly Križna Cave – a unique underground world with 22 emerald lakes connected by a crystal-clear stream. Ancient cave bear bones are hidden in side passages. In terms of the number of species of cave animals, Križna Cave is even regarded as on of the the richest caves in the world.