Postojna Cave & Predjama Castle tour from Koper

Underground train, a thousand-year-old castle, and the cave's famous olm

This guided day trip from Koper takes you into Postojna Cave, one of Europe's largest cave systems, where you ride an electric train through spectacular underground formations and walk the caverns with a local guide. The tour includes pickup from the cruise terminal, cave entry, transport by air-conditioned van, and a 15-minute photo stop at Predjama Castle on the return. The group stays under 20 people, and you'll meet the olm, the cave's unique "baby dragon", during the guided section that lasts about an hour on flat ground.

Step-by-step itinerary

Stops and time spent at each

1. Postojna Cave1h 40m · entry included
2. Predjama Castle15m

Postojna Cave and Predjama Castle Tour

• Meet at Koper Cruising Terminal
• Drive to Postojna Cave (50 minutes)
• Ride electric train inside cave (15 minutes)
• Guided cave tour with local guide (1 hour)
• Free time for souvenirs and refreshments
• Drive to Predjama Castle (15 minutes)
• Photo stop at Predjama Castle (15 minutes)
• Drive back to Koper (40 minutes)

The experience

You're picked up at Koper Cruise Terminal and driven 50 minutes through Slovenian countryside to Postojna Cave. Your English-speaking guide fills the ride with facts about the region, history and local customs. Once you arrive, the driver hands you your cave ticket and you join a local cave guide for the underground portion. The group is larger here since the caves are under national protection, but the guide speaks your language.

The cave entrance leads to a small electric train that carries you 15 minutes into the system. After you step out, the guided walk takes about an hour across mostly flat ground through vast chambers and spectacular formations. You'll see the olm, a small pale salamander that lives only in these caves and is sometimes called the cave's baby dragon. The walk covers the history and geology of the cave without requiring climbing or scrambling.

Back at the cave entrance, you have time to buy souvenirs, grab coffee or a snack, and use facilities before meeting your driver again. The return journey includes a 15-minute photo stop at Predjama Castle, a fortress built into a cliff face over 800 years ago and the world's largest cave castle. The final 40-minute drive takes you back to the cruise terminal. The whole day runs about five hours from pickup to drop-off. The cave stays around 10 degrees Celsius year-round, so bring a jacket and sturdy shoes regardless of the season.

What’s included

• Pickup and drop-off at Koper Cruise Terminal.
• English-speaking guide for the journey and cave orientation.
• entry ticket to Postojna Cave.
• electric train ride through the cave system.
• guided walk through the chambers.
• air-conditioned transport by van, minibus or bus for up to 20 people.
• 15-minute photo stop at Predjama Castle.
• basic insurance and VAT.

Before you book

Days and timesEvery day

AgesAdult (16 and older) · Youth (6 to 15 years) · Child (1 to 5 years)

GroupUp to 20

Live guideEnglish, Spanish, German, Italian and Czech

Meeting point and pickupNo hotel pickup: you go to the meeting point. Ends back at the starting point.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.It may be canceled if the minimum number of travelers isn't reached. If that happens, you're offered another date or a refund.

Prices and times updated 3 days ago

Good to know

Low physical effortInfant seats availablePets welcomePublic transport nearby

Operated by Slovenia Daytrip

Is this one for you?The five-hour round trip from your ship means you're back well before departure, and the flat cave walk requires no climbing or special fitness. It suits a first visit to the region or a relaxed afternoon away from the port.

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Top questions

What languages is the tour guided in?

Live guide in English, Spanish, German, Italian and Czech.

Can children come?

Yes. Ticket types: Youth (6 to 15 years); Child (1 to 5 years).

What is the olm, and will I see it in Postojna Cave?

The olm is a small pale salamander unique to these caves, sometimes called the cave's baby dragon. You'll encounter it during the guided walk through the cave chambers.

How much walking is involved in the cave tour?

After the 15-minute electric train ride into the cave, the guided walk lasts about an hour on mostly flat ground, so it's suitable for all fitness levels.

Is entry to Predjama Castle included?

Predjama Castle is a photo stop only, lasting 15 minutes. You won't go inside the castle, but you'll have time to photograph it from outside.

What's the temperature in the cave, and what should I wear?

Postojna Cave stays around 10 degrees Celsius (50 degrees Fahrenheit) all year, so bring a jacket and sport shoes. The tour operates in all weather, so pack rain gear if conditions are uncertain.

When will I know what time the tour departs from Koper?

The exact departure time is optimized after you book and will be confirmed when the operator contacts you. You'll need to provide your ship name and arrival and departure times at booking.