Postojna Cave Tickets: Train Ride Through Underground Chambers

What makes the train ride through Postojna Cave worth the trip?

You ride an electric train through Postojna Cave's vast underground chambers, then visit Predjama Castle built into a cliff face, with all entry fees and transport from Ljubljana handled. The half-day format means you're back in the city by early evening, and the English-speaking guide covers the history and geology as you move through both sites. No separate ticket purchases or logistics to arrange.

Step-by-step itinerary

Stops and time spent at each

1. Predjama Castle1h · entry included
2. Postojna Cave1h 30m · entry included

Visit Postojna Cave and Predjama Castle

• Travel to Postojna Cave
• Take electrical train tour
• Walk through cave chambers
• Travel to Predjama Castle
• Visit Predjama Castle
• Learn about Erasmus legend
• Return to Ljubljana

The experience

You've just landed in Ljubljana, and there's no time to waste. The Postojna Cave half-day tour picks you up from the city and drives you straight into one of Europe's most visited underground systems. The electrical train carries you through chambers so large they dwarf anything you've seen in a cave before. Stalactites, stalagmites, limestone curtains that look almost translucent when the light hits them right. The walk after the train ride takes you deeper, past formations that have been growing for millennia. It's not a rushed scramble. The guide sets a steady pace and explains what you're looking at as you go.

From there, the same vehicle takes you to Predjama Castle, about thirty minutes away. This one sits halfway up a cliff face, built directly into the mouth of a cavern. It's the kind of place that makes you stop and stare before you even get out of the car. The guide tells you about Erasmus, the medieval outlaw who used the castle as a hideout, and you start to understand why this spot mattered. You're walking through real rooms, real corridors, not a museum reconstruction. The castle is small enough that you're not exhausted by the time you finish, but big enough that you feel like you've actually been somewhere.

The whole thing runs about four to five hours from pickup to drop-off back in Ljubljana. All tickets are included upfront, so there's no standing in line at either site or worrying about whether you've paid the right amount. The vehicle is air-conditioned, which matters because the cave stays cool year-round and you'll want to move around comfortably. Bring walking shoes (both sites involve uneven ground and stairs), and a camera if you want to capture the cave formations or the castle's dramatic perch. Groups stay small, which means the guide can actually answer questions instead of herding fifty people through a tunnel.

What’s included

• Air-conditioned vehicle with pickup and drop-off in Ljubljana, panoramic drive between the two sites, professional English-speaking guide, entrance fees to both Postojna Cave and Predjama Castle, and the electric train ride through the cave.
• Specialized infant seats are available upon request.
• Comfortable walking shoes and a camera are recommended but not provided.

Before you book

Days and timesThursday to SaturdayDeparts at 08:30Last departure this season: 31 Oct

Book up to1d before

AgesAdult (12 and older) · Child (2 to 11 years) · Infant (under 2): free

GroupUp to 8

Live guideEnglish

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 6 days ago

Good to know

Low physical effortInfant seats availablePublic transport nearby

Operated by Roundabout Travel

Is this one for you?Right for travelers based in Ljubljana with a half-day window who want two major Slovenian sights without arranging separate transport or tickets. The pace is steady. You're walking and standing for most of the afternoon, so plan for a full physical day, but that's what lets you see both the cave and the castle properly instead of rushing through either one.

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Top questions

Can children come?

Yes. Ticket types: Child (2 to 11 years); Infant (under 2): free.

How long is the Postojna Cave tour itself?

The cave visit includes an electric train ride through the main passages followed by a guided walk through additional chambers. Total time underground is roughly 90 minutes, though the full half-day tour from Ljubljana is 4–5 hours including travel and Predjama Castle.

Is the cave walk difficult or steep?

The cave is suitable for all fitness levels. The electric train does most of the work, and the walking sections are on marked paths with handrails. Comfortable walking shoes are recommended because the ground is uneven and can be slippery.

What's included in the price?

Entry to both Postojna Cave and Predjama Castle, air-conditioned transport from Ljubljana, and a professional English-speaking guide. You do not pay separately at either site.

What if the tour is cancelled?

Tours require a minimum number of passengers. If the group doesn't meet the minimum after confirmation, you'll be offered an alternative date or a full refund.

Is there public transport to these sites instead?

Public transportation options exist near both attractions, but the guided tour includes pickup from Ljubljana and transport between sites, which is more convenient than arranging buses yourself.