Processing your payment

Headout logo. Link to home.
Help
Top things to do in Ljubljana

Postojna Cave & Predjama Castle

Postojna Cave is a vast karst wonder, where an underground train takes you through dramatic halls and rock formations. Nearby stands Predjama Castle, built dramatically into a cliff. Together, they showcase Slovenia’s natural beauty and medieval history. Book ahead to enjoy hassle-free entry and insightful guided tours.

48M+ travellers love us

Delivering best in class experience

Postojna Cave & Predjama Castle
Bled Castle overlooking Lake Bled with island church, Slovenia.
Tourists on a boat ride at Bled Lake with Bled Castle in the background.
Predjama Castle built into a cliff with a visitor on the viewing platform.
Medieval armor and weapons displayed inside Predjama Castle.
Tourists on a train ride inside Postojna Cave, Slovenia.
Tour guide with tourist exploring stalactites in Postojna Cave, Slovenia.
Stalactites and stalagmites inside Postojna Cave, Slovenia.
Stalactites and stalagmites inside Postojna Cave, Slovenia.
Tourists boarding an AC car for Lake Bled, Postojna Cave, and Predjama Castle tour from Ljubljana.
Free cancellation
Book now, pay later
10 hr 30 min
3 more
  • Explore Slovenia’s icons in a small group, marvel at Lake Bled, Postojna Cave & Predjama Castle (entry fees not included with this option).

  • Travel in comfort with A/C transport, round-trip pick-up and drop-off from Ljubljana, and a friendly English-speaking guide.

  • Take in sweeping views of Lake Bled, its island church, and Julian Alps as your guide shares legends of the wishing bell and Bled Castle’s history.

  • Uncover tales of Erasmus, the ‘Slovenian Robin Hood,’ who famously resisted a siege from his cliffside fortress at Predjama Castle.

  • Opt for the ticket-included shared tour with skip-the-line entry, audio guides, and Bled Castle’s famous cream cake.

More details

  • Explore Slovenia’s icons in a small group, marvel at Lake Bled, Postojna Cave & Predjama Castle (entry fees not included with this option).

  • Travel in comfort with A/C transport, round-trip pick-up and drop-off from Ljubljana, and a friendly English-speaking guide.

  • Take in sweeping views of Lake Bled, its island church, and Julian Alps as your guide shares legends of the wishing bell and Bled Castle’s history.

  • Uncover tales of Erasmus, the ‘Slovenian Robin Hood,’ who famously resisted a siege from his cliffside fortress at Predjama Castle.

  • Opt for the ticket-included shared tour with skip-the-line entry, audio guides, and Bled Castle’s famous cream cake.

from
€109
Visitors exploring stalactites and stalagmites inside Postojna Cave, Slovenia.
Stalactites and stalagmites inside Postojna Cave, Slovenia, with illuminated pathways and displays.
Tourists on a train inside Postojna Cave during an excursion.
Castle Predjama nestled in a cliffside, surrounded by lush greenery in Slovenia.
Piran Town Square with colorful buildings and bell tower, Slovenia.
Postojna Cave entrance with stone steps and flags, Slovenia.
Interior corridor of Predjama Castle with antler decorations and wooden benches.
Couple hiking towards Predjama Castle in Slovenia.
Minivan for Hurghada airport transfer with seating capacity.
Piran Town in Slovenia with coastal view and historic church tower.
Aerial view of Piran Town, Slovenia, featuring coastal buildings and the Adriatic Sea.
Free cancellation
Book now, pay later
10 hr
2 more
  • Spend a full day seeing some of Slovenia’s biggest highlights—think caves, castles, and a breezy coastal town—all starting from Ljubljana.

  • This relaxed, well-organised trip to Postojna Cave, Predjama Castle, and Piran, comes with comfy round-trip transfers and a friendly English-speaking guide/driver to keep things easy and informative.

  • At Postojna Cave, hop on the famous cave train, wander through huge underground chambers, and keep an eye out for the rare “human fish.”

  • At Predjama Castle, soak up the wow factor of a castle built right into a 123-metre cliff, then wander through the museum and snap some photos.

  • Spend time wandering Piran’s charming old town, stroll along the seaside promenade, enjoy views of the Adriatic, and stop for a coffee or gelato in one of the lively coastal squares.

More details

  • Spend a full day seeing some of Slovenia’s biggest highlights—think caves, castles, and a breezy coastal town—all starting from Ljubljana.

  • This relaxed, well-organised trip to Postojna Cave, Predjama Castle, and Piran, comes with comfy round-trip transfers and a friendly English-speaking guide/driver to keep things easy and informative.

  • At Postojna Cave, hop on the famous cave train, wander through huge underground chambers, and keep an eye out for the rare “human fish.”

  • At Predjama Castle, soak up the wow factor of a castle built right into a 123-metre cliff, then wander through the museum and snap some photos.

  • Spend time wandering Piran’s charming old town, stroll along the seaside promenade, enjoy views of the Adriatic, and stop for a coffee or gelato in one of the lively coastal squares.

from
€109
Guests exploring stalagmites in Postojna Cave, Slovenia.
Guests on a train exploring Postojna Cave's illuminated chambers.
Exploring stalactites and stalagmites in Postojna Cave, Slovenia.
Predjama Castle nestled in a cliffside with surrounding greenery in Slovenia.
Predjama Castle interior with stone walls and wooden roof structure.
Predjama Castle built into a cliff with a visitor in the foreground, Slovenia.
Free cancellation
Book now, pay later
5 hr 30 min
3 more
  • Go on an easy half-day adventure that lets you discover Slovenia’s most spectacular cave and castle in a single trip.

  • A comfortable journey from Ljubljana to the stunning Postojna Cave and the dramatic Predjama Castle, with a scenic underground train ride, an English-speaking guide/driver, and fascinating stories about legends, geology, and rare wildlife like the Proteus “baby dragon.”

  • This tour covers two of Slovenia’s top attractions seamlessly making it a great pick for families, nature lovers, and history buffs.

  • Optional upgrades that take the stress out of planning, including audio guides and entry tickets to both Postojna Cave and Predjama Castle with skip-the-line access.

More details

  • Go on an easy half-day adventure that lets you discover Slovenia’s most spectacular cave and castle in a single trip.

  • A comfortable journey from Ljubljana to the stunning Postojna Cave and the dramatic Predjama Castle, with a scenic underground train ride, an English-speaking guide/driver, and fascinating stories about legends, geology, and rare wildlife like the Proteus “baby dragon.”

  • This tour covers two of Slovenia’s top attractions seamlessly making it a great pick for families, nature lovers, and history buffs.

  • Optional upgrades that take the stress out of planning, including audio guides and entry tickets to both Postojna Cave and Predjama Castle with skip-the-line access.

from
€69

Similar things to do in Ljubljana

How Headout makes choosing experiences effortless

We curate the best ways to experience

We research and organise all unique experiences - from tickets to tours to special combos - so you get all the choices without the clutter.

We partner with the best

Every supplier is vetted for quality, reliability, and value so you only get top rated experiences. No surprises, no disappointments.

All the best options, in one place

Each experience is thoughtfully organised to give you maximum availability, great value and an easy way to choose.

Book with complete peace of mind

Free cancellations, Flexible payments, and 24/7 support - thoughtfully designed for flexibility, assurance, and total peace of mind.

1/4

We curate the best ways to experience
We partner with the best
All the best options, in one place
Book with complete peace of mind
Download app section background

We've served 48 million+ guests and we are here for you

48 million+

Happy customers across 10,000+ experiences

In the media

Featured and recommended by the best brands

24 x 7 help center

Have a question? Live chat with local experts anywhere, anytime