Postojna Cave is the largest Karst cave and the only one with a double track railway. It’s a fantastic network of 20 km of tunnels, beautiful passages, galleries and chambers with spectacular drop stones, pillars, limestone curtains and other unforgettable forms - one of the most visited natural landmarks in Slovenia.
The old cave is the part of the cave which was discovered in 1818. This is where the cave railway mostly runs today. The part that stands out most is the Congress Hall (previously known as the Ballroom), where magnificent festivities used to be organized.
Stalactites, stalagmites, underground halls and other rock formations are truly amazing! Pivka river has been carving the cave for 2 million years; it goes underground just by the entrance to Postojna Cave. The water level has changed over time and a beautiful 'multi-level' cave filled with stalactites, stalagmites, columns, curtains and other gorgeous shapes, were gradually created as the water was leaving layers of limestone behind.
The Beautiful Caves are the most magnificent and strongly calcified part of the Postojna Cave, which in some places extends into halls named after the characteristics of flowstone. The first is The hall of tubes, where white, needle-thin, transparent tubes hang from the ceiling. The ceiling of the hall reminds of rock rain, and is also called Spaghetti hall.
The white hall got its name after extremely white flowstone and white stalactites made of pure calcite with almost no admixtures.
The most beautiful stalagmite in the Postojna cave is the 5 metre-tall jem called the Brilliant. Looking at this marvellous, shiny white limestone formation, you simply must agree it is fully worthy of its name.
Another magnificent sights is the river Pivka mightily flowing into the depths of the cave.
The cave itself is rather peaceful and completely dark without lights. Despite that around 100 animal species live in the cave! The main attraction is, of course, the proteus, which was at first mistaken for a baby dragon! A modern aquarium is located inside the cave where you can see the proteus.
This is the most visited cave in Europe - more than 36 million in the last 200 years, so do not expect solitude or tranquility since there are approximately 1500 visitors per day.
The cave has only about 10 degrees celsius and almost 100% humidity throughout the whole year, so bring appropriate clothes and footwear. The path through the cave is relatively easy.
Here is another attempt of making a video but before saying that I'll stick to making photos rather than videos (obviously), in my defense let me just say that the video was made from the ride on the train on the way back...
Safe Travels ;)