Postojna caves and Predjama Castle

Explore one of the biggest cave systems in the world, including a train ride through caverns carved over 2 million years ago. After that, it’s off to Predjama Castle, a 13th-century fortress buried in a cliff face – and it was once home to Slovenia’s version of Robin Hood.

Some entrance fees and optional extras are payable locally.

Further Reading

  • Overview
  • Travel Advice