Kolkina Dupka is the longest cave in Bulgaria with 19,164 meters of underground galleries. Until now, Duhlata in Vitosha mountain with 18,200 meters of galleries was considered the longest in the country. This is what speleologists of the "Pod Raba" caving club, which is exploring the cave, told BTA.
According to them, in addition to being the deepest and longest in Bulgaria, Kolkina Dupka is definitely also the most difficult cave to explore with many underwater rivers. Entering the cave requires special equipment and preparation.
In 2017, Kolkina Dupka, in the municipality of Svoge, became known as the deepest cave in the country with a depth of 543 m. But according to researchers, the cave has not been fully explored and there might be a new correction in the data.
For all of Bulgaria, the first school day is a significant date and it can be said that it is one of the biggest holidays in this country. With these words, Caretaker Prime Minister Dimitar Glavchev addressed teachers, students and parents at the..
At the start of the school, year at school No. 128 Albert Einstein in Sofia, President Rumen Radev urged the school children to be “the genuine authors” of “their own tomorrow”. Education Minister Galin Tsokov greets students, teachers and..
The 2024-2025 school year will be the first in decades in which text books will be free for all pupils. 509 text books and general subjects study sets for students from the 1 st to the 12 th grade have been approved, the Bulgarian news agency..
Sofia’s urban subway system has proved to be among the most liked in Europe. The Sofia Metro was ranked the second best in Europe,..
Bulgaria's President Rumen Radev described his meeting with the President of the Republic of North Macedonia Gordana Siljanovska-Davkova, which took..
The 2024-2025 school year will be the first in decades in which text books will be free for all pupils. 509 text books and general subjects study sets..
Scattered showers
Cloudy
Mostly Cloudy
Partly cloudy, chance of rain