Enter into one of the hidden gems of our planet and see one of the world’s unique natural phenomena. Gaze into the deepest and largest underground canyon in the world. A maze of underground galleries and a view of halls with wonderful stalactites and stalagmites will reveal to you a whole new dimension of your planet.
At the foot of the Gorjanci Hills, near Kostanjevica, a small karst beauty is hidden, fascinating and rich in stalactites and stalagmites of various shapes. Here, rain water, underground watercourses, and tectonic shifts have created wonderful calcareous sinter creations with fairy-tale shapes for thousands of years. You can see three hundred metres of the most attractive parts of the cave.
Go underground by bike and kayak
Koroška, a unique region in northern Slovenia, really is a treasury of surprises. One of them is hidden underground, at Mount Peca in Mežica. Did you know that you can take a bike ride through the tunnels of the disused mine or even row through them in a kayak? Experience a unique adventure.Explore
Vilenica Cave is slightly mysterious, as its age has yet to be determined. Once you go into the cave, you will enter the first hall – the Dance Hall. Every year, this cave hosts the final event of the Vilenica International Literary Festival. The diverse shapes of the stalactites and stalagmites and their colours have inspired many artists, so enter the cave and allow your imagination to run free.
Križna Jama cave
Awaken your spirit of adventure and experience a genuine connection with the underground world of Križna Jama. You will be astounded by the series of emerald-green subterranean lakes, which you will cross in the company of experienced cavers until you reach a series of magnificent Karstic chambers. Learn about the amazing site where they discovered the remains of a cave bear which hibernated in the cave during the ice age.