Rijeka: Postojna Cave and Predjama Castle

Slovenia



A double-up geographical and historical experience beginning with the Postojna Cave, one of the best-known caves in the world, before concluding with Predjama Castle, the only preserved cave castle in Europe.

Postojna Cave and Predjama Castle Tour

Explore Postojna Cave and Predjama Castle near Postojna, ideal for visitors interested in natural wonders and medieval history.

Highlights

  • Visit Postojna Cave, one of the world's best-known caves
  • Ride the underground electric train inside the cave
  • See the cave's famous inhabitant, the proteus (olm)
  • Discover the history of Europe’s only preserved cave castle, Predjama Castle

Description

Your tour begins at Postojna Cave, the largest karst monument in Slovenia and a major tourist attraction. The cave's underground landscape is unique worldwide for its electric train ride, allowing visitors to traverse tunnels, passages, galleries, and halls with ease. The proteus, also known as the olm, is the cave’s most famous resident and can be observed up close during the visit.

Next, the tour continues to Predjama Castle, located near Postojna in the village of Predjama. This medieval castle has stood for over 800 years, built into a 123-meter high vertical cliff above the Lokva River, which flows into the underground world beneath it. As Europe’s only preserved cave castle, Predjama offers a rare glimpse into medieval construction techniques and defensive strategies.

The castle’s historical significance is enhanced by the story of its most notorious owner, Erazem of Predjama. During a 15th-century siege, Erazem used the castle’s unique location and secret passages to withstand besiegers for over a year until betrayal ended his resistance.

Includes

  • Guide
  • Transportation
  • Postojna Cave entrance fee
  • Predjama Castle entrance fee
  • Insurance

Excludes

  • Food and drinks

Easy cancellation

Cancel up to 24 hours in advance for a full refund.

Book in advance to secure your preferred date. Wear comfortable shoes and bring a light jacket as cave temperatures are cool year-round. The best visiting times are spring and autumn for fewer crowds.

Frequently Asked Questions

The tour includes a visit to Postojna Cave with an underground train ride and a guided exploration of Predjama Castle, Europe’s only preserved cave castle.
Postojna Cave is located near the town of Postojna in southwestern Slovenia, known for its extensive karst formations.
Yes, visitors can ride an underground electric train through sections of Postojna Cave.
The proteus, also known as the olm, a rare aquatic salamander, inhabits Postojna Cave.
Yes, the tour includes visits to both Postojna Cave and Predjama Castle on the same day.
The full tour generally takes several hours, but exact duration varies; check the tour provider's details for timing.
Guided tours are available at both sites, providing historical and geological insights about Slovenia’s natural and medieval heritage.
Yes, Postojna Cave is family-friendly and accessible for children, with safe pathways and engaging attractions.
These attractions are open year-round; check the official website for current hours and seasonal considerations.
It is recommended to book tickets in advance to secure availability, especially during peak tourist seasons in Slovenia.

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