How to Visit Postojna Cave & Predjama Castle from Ljubljana
Postojna Cave and Predjama Castle are two of Slovenia’s most famous attractions and one of the country’s most popular day trips from Ljubljana. Located less than an hour from the capital, they offer a perfect combination of breathtaking natural beauty, fascinating history, and unforgettable experiences.
Whether you prefer joining a guided tour or travelling independently, here’s everything you need to know about visiting Postojna Cave and Predjama Castle from Ljubljana.
How Far Are Postojna Cave and Predjama Castle from Ljubljana?
Postojna Cave is approximately 55 kilometres southwest of Ljubljana, while Predjama Castle is located just 10 kilometres from the cave. The drive from Ljubljana usually takes around one hour.
Best Ways to Visit Postojna Cave from Ljubljana
1. Join a Guided Tour (Recommended)
The easiest and most convenient option is to join an organised tour.
Our Postojna Cave & Predjama Castle Tour from Ljubljana includes transportation and allows you to visit both attractions in one seamless day.
- Comfortable transportation
- Visit Postojna Cave
- Visit Predjama Castle
- Professional local guide
- No need to organise transport or parking
2. Visit by Car
Driving from Ljubljana is straightforward via the A1 motorway. Parking is available at both attractions, making this a popular option for independent travellers.
3. Public Transport
Regular buses and trains connect Ljubljana with Postojna. From Postojna, visitors can take a shuttle bus or taxi to Predjama Castle during the tourist season.
What to See at Postojna Cave
- The famous underground railway
- Magnificent limestone formations
- Underground chambers and tunnels
- The unique olm, also known as the “human fish”
Visit Predjama Castle
Built into a 123-metre-high cliff, Predjama Castle is one of the world’s most spectacular castles.
Its dramatic location, hidden passages, and fascinating history make it one of Slovenia’s most visited cultural landmarks.
Why Visit Both Attractions Together?
Because of their close proximity, most visitors combine Postojna Cave and Predjama Castle into a single day trip. Together they offer one of the most complete experiences in Slovenia, combining natural wonders with medieval history.
Related Tours
- Postojna Cave & Predjama Castle Tour
- Lake Bled & Vintgar Gorge Tour
- Piran & Panoramic Slovenian Coast Tour
Frequently Asked Questions
Can you visit Postojna Cave from Ljubljana?
Yes. Postojna Cave is less than one hour from Ljubljana and is one of Slovenia’s most popular day trips.
Can you visit Predjama Castle and Postojna Cave in one day?
Absolutely. The attractions are only around 10 kilometres apart and are commonly visited together.
Is a guided tour the best option?
For many visitors, yes. Guided tours provide convenient transportation and make it easy to visit both attractions without planning logistics.
How long should I spend at Postojna Cave?
Most visits last around 1.5 to 2 hours, while adding Predjama Castle makes for an enjoyable full-day excursion.
Is Postojna Cave worth visiting?
Definitely. It is one of Europe’s most impressive cave systems and one of Slovenia’s top tourist attractions.
