Slovenia travel guide
What to see in Postojna Cave
One of the most visited caves in the world, with a train that runs inside it.
Updated 18 October 2026 · How we make our guides
- 5 must-see places
Postojna Cave highlights
The places you can’t miss. In the app we sort them by day and close to each other.
- Cave train
It runs for several kilometres underground.
- Concert Hall
A huge chamber with excellent acoustics.
- Olms
The “human fish”, a blind amphibian that lives in the cave.
- Predjama Castle
A castle set into a rock face, a few kilometres away.
- The Brilliant
The white formation that is the symbol of the cave.
Day trips from Postojna Cave
We take you straight to the best-rated tour on GetYourGuide, with its reviews and dates.
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When to travel to Postojna Cave
Any time of year is good to travel to Postojna Cave: our data shows no months with weather, closure or crowd warnings.
- Jan no warnings
- Feb no warnings
- Mar no warnings
- Apr no warnings
- May no warnings
- Jun no warnings
- Jul no warnings
- Aug no warnings
- Sep no warnings
- Oct no warnings
- Nov no warnings
- Dec no warnings
Where and what to eat
To eat like a local: the gostilna (traditional inn). The dishes you can’t miss are in the Slovenia guide.
Frequently asked questions about Postojna Cave
What to see in Postojna Cave?
Cave train, Concert Hall, Olms, Predjama Castle and The Brilliant.
What to see in Postojna Cave in one day?
Don’t miss Cave train, Concert Hall, Olms, Predjama Castle and The Brilliant. To split it into days and areas without crossing the city back and forth, the Bagintravel app plans your trip in a minute.
What’s the best time to travel to Postojna Cave?
Any time of year is good to travel to Postojna Cave: our data shows no months with weather, closure or crowd warnings.
What day trips can you take from Postojna Cave?
Postojna and Predjama.
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Travel ideas with Postojna Cave
More in Slovenia
Guide reviewed 18 October 2026. Places, areas and seasons: the same data the Bagintravel app uses. Sources and method.