In Pirin mountain, Banski Suhodol circus is situated one of most changeling abysses in Bulgaria. This cave system attracts efforts of several generations of cavers in its exploration & mapping. The environment [high attitude of the entrance 2516m, freezing temperatures inside 2oC÷8oC, tiny passages, 3D labyrinth, underground rivers & waterfalls, rope access, …etc.] makes this
Cave Duhlata 463
Duhlata Cave is located on the southern slope of Vitosha mountain, in the valley of Struma River, near the village of Bosnek. Its most used entrances are located at altitudes of 975.50m and 967.29m. The total length of explored galleries and halls exceed 18km, making the cave the longest in Bulgaria. The cave can be
Steel walkways in Ponora cave 323
Ponora cave is situated in West Balkan mountain region, close to city of Vratsa. It’s an interesting horizontal water cave system: a river is going in the entrance and after few kilometers underground the cave reaches siphon. In “socialism” time, a project for tourists attraction was partially realized by installing steel walkways over the water