Hourly trains run the 65km route from Ljubljana to Postojna, but as the walk to the caves is shorter from the bus stop, most people opt for this mode of transport. Once in the town, signs direct you to the caves. Inside, a train whizzes you through spectacular preliminary systems before the guided 1.5km walking tour starts. The vast and fantastic jungles of rock formations are breathtaking and there’s also an opportunity to catch a rare glimpse of the cave-dwelling “human fish”, a blind amphibian that can live for up to 100 years, before the climactic finale of the 40m high “concert hall”. Bring a jacket and appropriate footwear; the air inside the caves is decidedly chilly.

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