The most visited tourist cave in Europe is a place where the proteus or olm offspring are once again hatching. The cave railway has been operating at the cave for 140 years. The cave is connected to Predjama Castle, the largest cave castle in the world.
Christmas in the karst subterranean world
Postojna Cave boasts incredible subterranean halls. In one of them, the largest live nativity scene in the subterranean world can be seen at Christmas time. More than 500 performers put on this Christmas show among stalactites and stalagmites.
Take a train into the magical subterranean world
A legendary tourist train takes you to the underground network of karst tunnels, galleries, and halls. Postojna Cave is the only karst cave with a cave railway. For 140 years it has been taking visitors to see stalactites and stalagmites and other features created by water. During an hour and a half long guided tour, you learn about all of the most important karst features, you see the largest, 5-metre-high stalagmite known as Brilliant, you visit the oldest underground post office in the world and the most famous underground animal – the human fish (proteus).
The most visited cave
Thus far, more than 38 million visitors from all over the world have seen Postojna Cave. They began their visit at the departure platform of the unique cave railway. A 5-kilometre subterranean trail is available for tourist visits. The train has also been adapted for disabled access.
Visit the offspring of dragons
More than 150 animal species live in the karst caves of Slovenia, and the largest among them is the human fish (Proteus anguinus). . The only European underground vertebrate can live for up to 100 years and can survive without food for years at a time. A section of the Postojna Cave is the Proteus Cave and Vivarium, where you can learn about this rare and endangered species in greater detail. In 2016, offspring hatched from the eggs of the human fish in the vivarium for the first time. It has been long believed that the human fish is the offspring of a dragon that would swim up to the surface with the rising of subterranean waters. Don’t worry: the human fish is adapted to life in darkness and you are not likely to see it outside of the vivarium.
The birth of a human fish
In May 2016, offspring of the human fish hatched in the Postojna Cave. This is an extremely rare occurrence, as baby human fish have been hatched in an aquarium only once before. Take a look at why this birth is so significant.Explore
Predjama Castle and its hidden cave entrances
Predjama Castle is located in the vicinity of the Postojna Cave and is the largest cave castle in the world. For over 800 years it has been guarding a rock face, 123 metres high. Mysterious underground tunnels connect it with the cave directly beneath. The castle, which has also been a film location, offered refuge to its legendary owner Erazem Predjamski in the 15th century. This robber knight resisted a siege for over a year in his castle with its incredible appearance and location. Visitors can take a bus between the Postojna Cave and Predjama Castle in order to see both of these attractions.
Knight tournaments and medieval days
Every summer, Predjama Castle is the location of Erazem’s Knight Tournament, in which knights, archers, swordsmen, and horsemen show their fighting abilities and the historic way of life at a knight’s encampment. Medieval days, markets, and camps are also organised by many other Slovenian towns with castles.
The major attractions in Slovenia can also serve as the best starting points for your holiday. Here you can discover the special features of landscapes and treat yourself to a plethora of activities in nature.
Cycling and biking
Explore Slovenia by bike. Riding amid the hills and plains, mountain peaks and forests, along the coast and the karst landscape and along the rivers and lakes of Slovenia is a lushly verdant fairy tale. Different trails are suitable for on-road and off-road biking.
Walks across the lowland trails
Do you like exploring natural sites? Experience a hiking adventure in the lowlands of Slovenia. Interesting walking, themed, educational, and mountain trails can be found everywhere.
Slovenia is a country of smaller ski resorts that are family-friendly and suitable for beginners, children and experienced skiers alike. Numerous ski schools and ski instructors, who speak different languages, will make sure that you really enjoy the snow.
Golf courses in Slovenia are located amidst idyllic surroundings and are among the most beautiful courses in Europe. They are set in typical landscapes on the edge of the Pannonian Plain, among vineyards and rolling hills, below Alpine summits, and in the idyllic karst landscape.
Treat yourself to a swim in some of the many thermal spas and swimming pools. In summer, take a dip in the sea, lakes or rivers. Slovenia is rich in natural water resources. Visit Lake Bled and Lake Bohinj or one of the many natural swimming areas located on the coast.
Also visit museums that house the greatest treasures of Slovenia. Marvel at the special features of the landscape in protected nature areas. In the Karst, which lent its name to all karst phenomena throughout the world, you can also learn about the special features on the land surface, and not only those found in karst caves.
Stories from Slovenia
Sign up for our monthly newsletter to receive a green piece of Slovenia in your inbox, and learn about holidays, seasonal offers, upcoming events and travel options.