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.
Varna is hosting the 18th Black Sea Tourism Forum on the topic "Positions of the Bulgarian Black Sea coast in the tourism market - challenges and prospects". The organizer of the discussions, which will take place on October 30 and 31 in our Black Sea..
On Thursday, the minimum temperatures in Bulgaria will be from 1 to 6°C, in Sofia - 2°C. The temperatures in the valleys will be slightly lower in the morning, where there will be conditions for frost. In the hours before noon, it will still be foggy..
Mariya Gabriel from GERB allegedly tried to have sanctions lifted for Delyan Peevski and other individuals. This took place while she was Deputy Prime Minister and Minister of Foreign Affairs in Nikolay Denkov’s government, said in Parliament Bozhidar..
The necessary net monthly income for subsistence for a worker living alone in September 2025 is 1,547 leva (748 euros) . For a three-member family with a..
The ruling parties GERB-SDS, BSP-United Left and ITN signed an annex to their coalition agreement, specifying the rules for the rotation of the Speaker..
Wednesday's minimum temperatures will be 1–6°C , with Sofia at 1°C. Some lowland areas may have reduced visibility in the morning. It will be mostly sunny..
Partly Cloudy
Clear