SLOVENIA
Postojna cave & castle | Private off cruise excursion from Koper
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At a glance
- Location
- Slovenia
- Languages
- en
- Cancellation
- Free cancellation available
- Operated by
- Roundabout Travel
- Booking
- Instant confirmation, mobile e-ticket
Overview
The mystic underground of the Postojna Cave, most notorious karst cave in the world, with the Predjama Castle, listed among the Guinnes World Records as the largest cave castle, and home to the local "Robin Hood", the brave robber baron Erazem.
The guided tour of Postojna Cave will consist of a ride by electrical train and a walk through beautiful underground passages and chambers with spectacular drop stones, pillars, limestone curtains and other natural stone forms.
Continue to the idyllic village of Predjama, where you will be amazed by our fairy tale medieval Predjama Castle, famous for its dramatic setting in the gaping mouth of a cavern halfway up a hillside. Learn about the legend of Erasmus - "Slovenian Robin Hood" and return to the port.
What's included
- Private transportation
- Cruise port pickup and drop off
- Private driver/guide
What's not included
- Personal expenses
- Entrance fees (Postojna Cave and Predjama Castle 35€)
- Food and drinks
- Gratuities
- Entrance fees
Itinerary
- (1h)
Postojna cave guided underground experience with local guide
- (1h)
Castle guided walk
Meeting & pickup
Advantages of private tour:
- Pick up/drop off at your chosen location
- Pickup time is flexible and adjustable to your wishes and cruise ship schedule
Good to know
- Specialized infant seats are available
- Service animals allowed
- Travelers should have at least a moderate level of physical fitness
- Please wear comfortable clothing and shoes
Cancellation policy
Free cancellation available — see Viator booking page for exact deadlines and refund terms.
About the operator
Roundabout Travel operates this experience in Slovenia. All bookings are managed and confirmed directly through Viator, the world’s leading marketplace for tours and experiences, ensuring secure payment, instant confirmation, and 24/7 customer support.
Tour information last updated October 5, 2026