REVIEW · POSTOJNA CAVE AND PREDJAMA CASTLE
From Ljubljana: Postojna Cave Day Trip
Slovenia goes underground here. This trip pairs a private ride from Ljubljana with one of Europe’s most unusual cave visits, including a small train journey through the limestone passages and a guided walk below ground. I especially like the door-to-door pickup and the chance to reach Postojna without arranging a rental car or public transport. The main concern is the timing: the experience is advertised as two hours, but the stated schedule runs from 8:30 AM until about 1 PM, with 105 minutes inside the cave.
I also like that the driver stays with you through the arrival process and returns you to your accommodation. That makes this a simple choice for a short Ljubljana stay. You should budget extra for the entrance ticket, however, since the advertised $106 price does not include the cave admission fee, which is €25.80 per adult through June 26 and €27.90 from June 27 through September 9.
In This Review
- Key points to know before booking
- Why Postojna Cave is worth the trip
- The 8:30 AM pickup from Ljubljana
- Arriving at Postojna Cave around 9:30 AM
- Riding the little train underground
- The 1.5-hour guided walk
- Meeting the olm at the end
- Lunch and a short break near the ticket counter
- The return drive to Ljubljana
- Price, timing, and overall value
- Who should book this Postojna Cave trip?
- Should you book it?
- FAQ
- Where does the tour begin?
- What time is pickup?
- How long is the drive to Postojna Cave?
- What time do you arrive at the cave?
- How long is the cave visit?
- Is the cave entrance fee included?
- Is food included?
- What language is the tour conducted in?
- Is hotel drop-off included?
- Can you cancel the booking?
Key points to know before booking
- The cave train is part of the main experience: You ride into the cave, walk with an English-speaking guide, then take another train toward the exit.
- Private transport saves planning time: Pickup and drop-off at your Ljubljana accommodation are included.
- The cave visit lasts about 105 minutes: Expect a train journey, a substantial guided walk, and another train ride.
- The real outing takes roughly four and a half hours: Pickup is scheduled for 8:30 AM, with return to Ljubljana around 1 PM.
- Entrance is extra: Add the seasonal €25.80 or €27.90 adult ticket to the $106 tour price.
- Driver quality matters: Maj has been praised for being punctual, friendly, and helpful, while another account reports rushed service and confusion about an additional castle stop.
Why Postojna Cave is worth the trip

Postojna Cave is in Inner Carniola, roughly an hour from Ljubljana by road. The Pivka River helped form this limestone cave network, creating long passages and large underground spaces that are difficult to grasp from photographs alone.
What makes Postojna different from a standard cave walk is the train. You do not simply enter on foot and follow a short path. Instead, you ride farther into the cave system, then continue on foot with a local English-speaking guide. That combination gives you a sense of distance without requiring you to walk the entire route.
I find the train especially useful for visitors who want a major natural attraction but do not want a demanding day of hiking. You still walk for about an hour and a half, so this is not a sit-back-only excursion. But the train removes much of the strain and makes the scale of the cave easier to appreciate.
The cave is described as Slovenia’s second-longest cave network. The tour focuses on the underground setting, the area’s geology, and facts about Slovenian culture. The guide adds meaning to the rock formations and the route, rather than leaving you to stare at stone walls without context.
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The 8:30 AM pickup from Ljubljana

The day begins with pickup at your accommodation in Ljubljana at about 8:30 AM. Because the group is private, you avoid gathering at a large meeting point and sharing a bus with strangers.
That matters most if you are staying in Ljubljana for only a short time. A private return transfer means you can leave the city center, visit Postojna Cave, and get back without working out train schedules or finding a taxi at the cave site.
The drive takes about one hour. The route offers views of Slovenia along the way, and the driver can provide a useful introduction to the country. One particularly praised driver, Maj, was described as punctual, easy to talk with, and fluent in English. He also stayed until the passengers had bought their cave tickets, a small service detail that can remove stress at the start.
You should still confirm the pickup time and location carefully. The advertised service includes pickup from your Ljubljana accommodation, and a reported booking problem involved an initial attempt to avoid hotel pickup. That is not the experience you want on a tightly planned morning, so keep your booking details available and make the included pickup clear.
Arriving at Postojna Cave around 9:30 AM

The planned arrival is about 9:30 AM, leaving roughly half an hour before entering the cave at 10 AM. You go to the ticket counter before the tour begins.
This waiting period is useful. It gives you time to sort out admission, use the facilities, and get ready for the underground visit instead of rushing straight from the car to the train. The driver may help you find the ticket counter, but the cave entrance fee itself is not included in the tour price.
The price difference by season is modest, but you should know about it before you book. An adult ticket costs €25.80 until June 26 and €27.90 from June 27 through September 9. Since the excursion already costs $106 per person, the final amount is noticeably higher once you add admission and any food or drinks.
The tour price makes more sense if you place a value on convenience. You are paying for a private vehicle, hotel pickup, a return transfer, and a simpler day than you would have by arranging the journey yourself. If you already have a car, or if you are focused only on the lowest price, the value is less convincing.
Riding the little train underground
The first major part of the cave visit is the train ride. The train carries you through the passages and farther into the cave network. It is a fun feature, but it also serves a practical purpose: the cave is large enough that walking from the entrance through every section would take much longer.
A train inside a cave sounds slightly theatrical, and it is. That is part of the charm. You sit close to the rock as the route moves through the underground passages, giving you a changing view of the cave’s size and shape.
The train is also a good reason to choose this attraction over a smaller cave close to town. Postojna offers a more substantial visit, with transport built into the route and a guided walk after the ride.
You should pay attention to the temperature and your footwear. The supplied information does not state a cave temperature or dress code, so I would not assume exact conditions. Still, you are entering a limestone cave and walking for around 105 minutes in total. Comfortable shoes are the sensible choice, and a light layer may be useful if you tend to feel cold indoors.
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The 1.5-hour guided walk

After the train journey, you follow a local English-speaking guide on foot. The complete cave stop is listed as 105 minutes, and one detailed account describes the visit as a train ride followed by about an hour and a half of walking, then another train to the exit.
This is where the visit gains depth. The guide explains the geography of the area and connects the cave to Slovenian culture. I like that balance. You get the visual thrill of the underground route, but you also learn why the cave exists and how it fits into the region.
The guide is live and the tour language is English. One highly praised guide was described as friendly and full of useful information about Slovenia in general. That wider context can make the trip more worthwhile, especially if this is your first visit to the country.
The walking portion deserves honest attention. The tour is not difficult in the way a mountain hike is difficult, but it is still a substantial walk after the train ride. If you need frequent rest breaks, ask about the pace before you commit. The information provided does not promise a flexible pace or special accessibility arrangements.
At the end of the cave route, you take another train toward the exit. This second ride is welcome after the walk and brings the visit to a tidy finish.
Meeting the olm at the end
A small but memorable detail is the chance to see the olm at the end of the cave visit. One booking account singled out meeting these unusual cave creatures as a highlight.
The olm is closely associated with Slovenia’s cave world, so this adds a local touch to the visit. The cave itself is the main event, but the olm gives you something specific to remember beyond the train and rock formations.
The supplied information does not state how long you spend viewing them or whether the encounter is guaranteed at every departure. I would treat it as a possible highlight rather than the central reason to book.
Lunch and a short break near the ticket counter

After the cave tour, you have time to find food at the restaurant near the ticket counter. There is also time for a little souvenir shopping.
Food and drinks are not included, so plan to pay separately. The timing gives you a chance to recover from the walk before the return drive, though the amount of free time may depend on the day’s schedule and your driver.
This is one area where service consistency matters. A reported account described a driver pressuring the group to leave immediately after the cave visit, leaving little time to sit and drink water. That is a serious concern because the break comes after a long underground walk.
Another account describes the opposite experience, with time for lunch and shopping before the driver returned the passengers to their hotel. I would ask your driver at the start how much time is planned after the cave. A clear answer can prevent an unpleasant surprise.
The return drive to Ljubljana
The return journey takes about one hour, with drop-off at your accommodation scheduled for around 1 PM. That makes this an efficient morning and early afternoon outing rather than a full-day tour.
The private return transfer is one of the strongest reasons to choose this experience. You do not need to find your way back from Postojna, and you can spend the drive resting after the cave walk.
The private format also allows conversation with the driver. Maj was praised for making the drive easy and friendly while sharing information about Slovenia. That personal contact can turn a basic transfer into a useful introduction to the country.
Still, do not assume every driver will provide the same level of care. The available feedback includes a very negative account involving rushed timing, pickup problems, and an unexpected proposal to visit a castle. The cave trip as described here does not include a castle stop. If anyone suggests an extra stop, ask whether it is included, optional, or at your own cost before agreeing.
Price, timing, and overall value
The listed price is $106 per person. The cave ticket is extra, costing €25.80 per adult until June 26 and €27.90 per adult from June 27 through September 9. Food and drinks are also separate.
For one person, the total cost is not trivial. For a private group, however, the price may be easier to justify, especially if you value hotel pickup and do not want to drive. You are buying simplicity, not just admission to the cave.
The timing needs careful attention. The activity details say two hours, but the schedule clearly describes:
- 8:30 AM pickup in Ljubljana
- About one hour of driving
- Around 9:30 AM arrival
- 10 AM cave entry
- About 105 minutes underground
- Lunch or shopping afterward
- Return to Ljubljana around 1 PM
I would plan on roughly four and a half hours from pickup to drop-off. The two-hour figure appears to describe the core activity rather than the complete door-to-door outing. If you have a midday appointment in Ljubljana, allow plenty of extra time.
The free cancellation policy allows you to cancel up to 24 hours in advance for a full refund. You can also reserve now and pay later, which helps if your schedule is still changing.
Who should book this Postojna Cave trip?
I would recommend it most strongly to:
- You want a private ride from Ljubljana rather than public transport.
- You are visiting Slovenia without a rental car.
- You enjoy guided natural attractions but do not want a full day away from the city.
- You like the idea of a cave train and a substantial underground route.
- You want hotel pickup and drop-off handled for you.
- You are comfortable paying extra for the cave ticket and lunch.
I would think twice if you are searching for the cheapest possible way to visit Postojna Cave. I would also be cautious if you need a very relaxed schedule, since the walk is long and at least one reported experience involved pressure to leave quickly after the tour.
The private group setup is useful for couples, families, and small groups who prefer direct transport. Solo visitors may find the $106 base price harder to justify unless the convenience matters a great deal.
Should you book it?
Book this tour if you want the easy version of Postojna Cave: private transfers, a live English-speaking guide, the underground train, and a return to your Ljubljana accommodation before midafternoon.
I like the structure and the cave itself sounds well worth the trip. The strongest praise centers on punctual pickup, friendly drivers, helpful English, clear guiding, and the chance to see the olm. Before paying, confirm the total timing, the extra cave fee, the pickup arrangement, and the planned break after the cave.
With those points settled, this is a convenient and memorable way to add one of Slovenia’s signature natural sights to a Ljubljana visit.
FAQ
Where does the tour begin?
Pickup is from your accommodation in Ljubljana.
What time is pickup?
The scheduled pickup time is 8:30 AM.
How long is the drive to Postojna Cave?
The drive from Ljubljana to the cave takes about one hour.
What time do you arrive at the cave?
The planned arrival time is around 9:30 AM, with entry into the cave at about 10 AM.
How long is the cave visit?
The cave portion is listed as 105 minutes. This includes a train ride, a guided walk, and another train toward the exit.
Is the cave entrance fee included?
No. The adult entrance fee is €25.80 until June 26 and €27.90 from June 27 through September 9.
Is food included?
No. Food and drinks are not included. You can find something to eat at the restaurant near the ticket counter after the cave visit.
What language is the tour conducted in?
The live tour guide speaks English.
Is hotel drop-off included?
Yes. Return transportation to your accommodation in Ljubljana is included.
Can you cancel the booking?
Yes. You can cancel up to 24 hours in advance for a full refund. The activity also allows you to reserve now and pay later.
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