Available languages
11 hours
Mobile ticket
Join us on this spectacular day trip exploring Slovenia's must-see gems! Marvel at the magical underground world of Postojna Cave during an exciting train ride among breathtaking stalactites. Next, step inside the iconic Predjama Castle, dramatically built into a towering cliff, filled with medieval legends and hidden secrets. Finish your day strolling through picturesque Piran, soaking in Mediterranean charm, Venetian architecture, and seaside views. Don't miss this unforgettable adventure—book now!
Public transportation options are available nearby
Specialized infant seats are available
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
For a full refund, cancel at least 24 hours before the scheduled departure time.
Predjama Castle
Explore Predjama Castle, the world's largest cave castle, dramatically built into a towering cliff. Discover hidden passageways, medieval legends, and breathtaking views for an unforgettable experience!
Postojna Cave
Discover Postojna Cave, a breathtaking underground world filled with stunning stalactites and stalagmites. Enjoy an exciting train ride through magical caverns for an unforgettable adventure!
Postojna cave entrance fee
Organization
Air-conditioned vehicle
Predjama castle entrance fee
Piran walking tour
Food and drinks
Your own expenses
Intercontinental Ljubljana By IHG
Slovenska cesta 59 Ljubljana Slovenia
City hotel
Dalmatinova ulica 15, Ljubljana Slovenia
Pickup included
10 reviews
Total reviews and rating from Viator & Tripadvisor
JDN0908,Apr 21, 2026
- Review from Tripadvisor
What a superb day ! The tour was planned so well through a company called To Do In Slovenia ! Prompt what’s app messages since they had to re shuffle the date for us , a quick call when required, polite staff . The day itself started perfectly with a sharp on time pick up , very spacious and comfortable mini van , a small group of people and an excellent driver guide ! The caves and castle was lovely but th surprise package was Piran . It’s really stunning and a must visit are some of the restaurants on the coast . A full a very memorable day well spent. Thank you

















Julie B,Apr 17, 2026
- Review from Viator
A full day, turnkey, suitable for a solo person (even if I was the only one). I recommend 100% to visit beautiful sights in Slovenia in just one day. The caves are beautiful, the cave castle also and the small town of Piran is very friendly (even if not really impressive) which allows a nice walk to close the day. Just a small flat: no slot really planned for the meal before 2-3pm. I personally had a sandwich at the end of a visit, but it wasn't set in the agenda. The driver was friendly, very clear and understandable in his explanations.




Abby M,Apr 16, 2026
- Review from Viator
Amazing trip seeing some of Slovenia’s highlights. The teens rated a 10 and that speaks volumes. The castle was beautiful and very well done with the audio in all the rooms. The cave was epic and other worldly and the train added a fun factor and Piran was a beauty! Fantastic guide - do it, you will not regret!
Renniemo,Apr 15, 2026
- Review from Tripadvisor
We had a fantastic day, we visited Predjama Castle before moving on to Postojna Caves. Both were awesome. Afterwards a short drive to the beautiful town of Piran for some free time and a guided walk which I'd recommend as you get lost through all the alleyways. Meha our guide was knowledgeable, friendly and a really nice guy. 10/10. Thank you for the full and active day
indira s,Apr 8, 2026
- Review from Viator
David was on time Good driving skills felt very safe with his driving Very knowledgeable Friendly We enjoy the trips family of 3




neerajgarg3,Apr 5, 2026
- Review from Viator
Unforgettable experience! David was the best tour guide, making Postojna Cave & Piran unforgettable!
Q1318ZImarissap,Mar 31, 2026
- Review from Tripadvisor
Amazing day visiting so many beautiful and interesting sights! Our guide David was funny, insightful and made sure we got the most out of the tour. Great memories, thanks again!
yang z,Mar 18, 2026
- Review from Viator
Dave is a great tour guide. He is warm, knowledgeable, and helpful. He showed us extra of castle ruins,e ruin on the road, when time is permissible. We had great time with him.
Tweedie888,Nov 5, 2025
- Review from Tripadvisor
Unique and most memorable experience…we moved every minute of it…must do in Ljubljana. It’s etched in our memory for life….


Reija P,Oct 12, 2025
- Review from Viator
We had a great day with our guide Simona, who told us so much about Slovenia and the places we visited. The Postojna caves were really impressive, the best I have seen. The Predjama castle is in an interesting location, but there is little to see inside. Piran is a beautiful little town. We first had lunch at the sea front, and then had a walk around the town with Simona.
Operated by To do in Slovenia