The famous Prohodna Cave is located northeast of Sofia’s capital, at 110 km. The name of the cave comes from the Bulgarian word for a passage, as it is the longest cave in the country – about 365 km long. It is open to visitors all year round, depending on the weather.

Once you cross the threshold, you feel intimidated by its size and semi-dark spaces, just like the cavemen did a few hundred thousand years ago. The Prohodna cave allows you to look into “God’s eyes.”

This cave is approximately 70 million years old and was discovered about 60 years ago, in 1962. There are traces of the inhabitants who lived here 200,000 years ago. It is famous for its “eyes.” They are two holes caused by erosion. They remind the human eye, which is why they are called “the eyes of God.” Furthermore, they are almond-shaped, and from underneath, you have the impression that someone is looking at you. Because of this phenomenon, its size and characteristics, the cave is included in the list of “100 best Bulgarian tourist sites”.

A bit further south of the cave is a mountain inn called “The national cave house “Peter Tranteev””. This hostel is located on the top of the mountain, which allows to have a good view of the cave and the river Iskar, which used to fill the Prohodna cave but now flows only under it. An interesting fact about this river originates in the Rila mountain range, which is in southern Bulgaria and flows north instead of the other way around.

In front of this cave, we become aware of the power of God and are reminded of how small we are and how big and powerful our nature is. The erosion processes in the cave have changed its appearance over time, but it has nevertheless kept traces of the people who used it as a dwelling long ago.