Arda · RhodopesTwo levels, 460 metres long. The developed section runs 330 metres, along a path and 280 metal steps.
Among the stalactites and stalagmites are dendrites — formations that make you feel you are on the sea floor. The route ends at a snow-white limestone waterfall and four rimstone pools that fill with water in spring.
The entrance sits at 1,040 metres. Inside it stays 10–11 °C all year. Eight species of bat live here.
Surveyed by the Studenets caving club of Chepelare and opened to visitors on 8 September 1984.