Small group approach with carefully planned time, where experienced local tour operator’s chauffeur guide will collect you at designated location for an informative hourly ride to Postojna to start your unique karst experience. The Pivka river has been carving the Postojna Cave for 2 million years. The water level has changed over time and created a beautiful "multi-level" underground world filled with stalactites, stalagmites, columns, curtains and other gorgeous shapes was gradually created as the water was leaving layers of limestone behind. The first visitors supposedly came to the cave as early as the 13th century, but the most beautiful parts of the cave were discovered in 1818. You’ll enter the cave by train. The train ride takes about 10 minutes, and then you’ll continue on foot with a guided tour. Walk up the Great Mountain (Calvary) which is an underground hall formed from the collapse of the ceiling. Stroll under the needle-thin transparent tubes hanging from the ceiling in Hall of Tubes. Admire the White Hall of pure white stalactites and the reddish coloured Red Room. From under the Russian Bridge you will reach The Concert Hall from where you can see the amazing white Brilliant – a truly breathtaking sight. 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.