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Attractions · Postojna & Karst

Predjama Castle

Built into the mouth of a cave halfway up a 123-metre cliff, which the park calls the largest cave castle in the world, with the legend of the knight Erazem of Predjama told on the tour.

Predjama €€

Last checked 10 November 2026

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Overview

Predjama Castle has stood for more than 800 years in the mouth of a cave halfway up a 123-metre cliff, which the cave park describes as the largest cave castle in the world. Visitors walk through the armoury, chapel, kitchen and attic collection of arms and armour, hearing the legend of the knight Erazem of Predjama, who withstood an imperial siege for over a year. The castle is about nine kilometres from Postojna Cave, so it pairs naturally with a cave visit.

Highlights

  • Castle in a cliff cave
  • Erazem of Predjama legend
  • App tour in 19 languages

Good to know

Questions

When is it open?

The cave park says the castle is open every day, including holidays and in bad weather, and year-round. It does not publish daily hours on the pages we checked, so see the tour times on the park's website before you go. The Cave under Predjama Castle is open in summer only, because of the bats' hibernation; the park's pages give May to September on one page and June to August on another.

How much is a ticket?

The park's ticket page lists a single Predjama Castle ticket at 24 EUR, and also sells it in combination tickets with Postojna Cave.

How does the tour work?

A guided tour runs through an app that is included in the ticket and available in 19 languages. An audio guide can be rented at the castle ticket office for 2.90 EUR.

Is it accessible, and can I bring a dog?

No. The park says the castle is not suitable for wheelchair users, people with mobility impairments or prams because of the many stairs, and pets are not allowed inside. There is a paid car park in front of the castle.

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