Koper to Postojna Cave & Predjama Castle

A day trip to the world-famous Postojna Cave where you can find the mysterious baby dragon, and visit the largest cave castle in the world, the Predjama Castle.
Start time
Starting point
~ 6 hours
Every day
From: 159€/person

Explore the magical underground world of the Postojna cave

Take a ride on the oldest underground railway in the world

Visit the largest cave castle in the world

Discover the secret tunnels used by Erazem of Predjama

Group visit to Postojna cave from Koper
Group visit to Postojna cave from Koper
Visitor from shore excursions Koper in Postojna cave
Visitor from shore excursions Koper in Postojna cave
Day trip to Predjama Castle
Day trip to Predjama Castle
Visit to Predjama Castle
Visit to Predjama Castle
Human fish in Postojna Cave
Human fish in Postojna Cave
Postojna Cave day trip
Postojna Cave day trip
Visiting Postojna Cave from Koper
Visiting Postojna Cave from Koper
Postojna Cave
Postojna Cave
Day What we will do
8.30 am Departure from Koper
10.00-11.30 am Postojna Cave
12.00-1.00 pm Predjama castle
2.00 pm Return to Koper

Included in price

English speaking guide

Comfortable Transportation

All parking fees and toll charges

Optional Extras

Predjama Castle entrance fee
Postojna Cave entrance fee
Pickup / drop-off at your location in Koper
All parking fees and toll charges

Important for the tour

Difficulty: Moderate (1.5km walking through Postojna Cave + around 200 steps in Predjama Castle)
The temperature in the cave is 10C, so make sure you are dressed properly
Snacks and beverages are not included
Shared group trip of max 8 people
Private tour available with extra charge
Minimum number of guests applies
The trip is conducted in English, Spanish guide available with extra charge

The first stop on our day trip will be the Postojna Cave, the most famous Karst cave in Slovenia and get the chance to see its world-famous “baby dragon”.

It starts with a train ride on the world’s first railway in an underground cave. It will take you deeper the cave, where you will hop off and continue on foot. You will be able to explore the magical underground world of stalactites and stalagmites, walking through fairytale-like halls, the oldest underground post office in the world, and more.

But something even more interesting is waiting for you in the caves … a dragon!

Oh, maybe not a real dragon, but the legends call it a “baby dragon”. Its real name is olm, but people also call it a “human fish” because of its skin-like colour. It’s an aquatic salamander that lives in the Postojna cave and is the largest cave animal in the world that can live without food for up to 10 years. As it is blind, it won’t be able to see you, but hopefully, you are lucky and able to see them.

After emerging from the underground of the Postojna Cave, we will take a short drive to the Predjama Castle, the largest cave castle in the world.

This castle stands in the middle of a 123-metre high cliff and is more than 800 years old. The rebellious robber knight Erazem of Predjama lived here, where he was able to resist the imperial siege for over a year. There is also a large network of secret tunnels behind the castle, connecting with the cave below it.

Come and discover the castle’s secrets with us!


Start planning today!

The sooner the better - guaranteed availability and best prices if you don't wait for too long.
Inquire now

Things to know

Professional guides and tour leaders

Experienced and passionate local guides will make your trip run smoothly, going that extra mile for you.

Exceeding Your Expectations

Our professional team with an in-depth knowledge of the region cherry-picked only the best shore excursions in Slovenia.

100% Made in Slovenia

Based in Slovenia, we are working closely with local suppliers to provide you with a unique experience at the best possible price.

Trusted by Many

We are a financially protected company operating since 2014, and with thousands of satisfied customers in the past, we still put you first.

Similar tours from Koper

Lake Bled Island
Lake Bled Pletna ride
Bled Castle
Lake Bled day trip
Lake Bled view point
Lake Bled Castle yard
Lake Bled Castle from above
Lake Bled Panoramic view
Kremšnita Bled
8 hours
Take a shore excursion from the dreamy Adriatic Coast to the Pearl of Slovenia, and discover its best attractions on this stunning day trip from Koper to Lake Bled.
From: 189€/person
More →
Lipizzaner horses
Family with Lipizzaner horse
Day trip to Lipica
Lipica stud farm and horses
Karst stone house
Wine tasting experience
Wine cellar Goriska Brda
Lipizzaner horses outside
Lipica farm scaled
6 hours
Discover the finest culinary traditions of Karst Region. Marvel at the world-famous white Lipizzaner horses on this stunning day trip from Koper.
From: 185€/person
More →
Group tour in Ljubljana
Ljubljana old town and Ljubljana river
Dragon bridge Ljubljana
Ljubljana city center
Day Trip to Ljubljana
Old city center in Ljubljana
Ljubljana Castle
Guided culinary tour
Kongresni trg scaled
~ 8 hours
Discover the rich cultural heritage and the stunning architectural works in the lively Slovenian capital by going on a day trip from Koper to Ljubljana.
From: 169€/person
More →
Typical Slovenian vineyards
Vineyard in Slovenia
Wine tasting from Koper
Wine Tasting
Wine tasting group
Wine tours from Koper
Slovenian wine tasting cellar
Wine cellar Goriska Brda
~ 6 hours
Spoil your taste buds by experiencing the rich flavors of local wines and enjoying the stunning views of the Slovenian Coast on this day trip from Koper.
From: 189€/person
More →
Day trip to Piran from Koper
Piran main square
Visiting narrow Piran streets
Day trip to Piran
Piran coastiline and schurch
Piran view from the castle
Piran coastline
Piran panoramic image
private day trip scaled
~ 4 hours
Join us on a half-day shore excursion from Koper to Piran, one of the most picturesque Slovenian towns located on a scenic peninsula on the Adriatic coast.
From: 139€/person
More →
Fully experience your day in Slovenia on one of our shore excursions from Koper, visiting some of the top highlights and uncovering hidden gems.
© Copyright by Shore Excursions Koper
Portfolio company of World Discovery.