Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
RadonLithiumBicarbonates
Sokobanja is a well-established spa resort in the Zajecar district of eastern Serbia, set in a mountain valley framed by the Rtanj, Ozren, and Bukovik peaks, whose radon and bicarbonate-rich thermal waters — among the most distinctive in the Balkans — have been part of the local bathing tradition since the Ottoman period. The medieval Sokol (Falcon) towers perched on the rocky spurs above the valley give the town its name and create a dramatic medieval skyline above the modern thermal facilities, evoking the mediaeval Serbian feudal landscape of the 13th and 14th centuries. The combination of radon thermal waters, long appreciated for relaxation and restful well-being, with the hiking and nature of the surrounding Carpatho-Balkanid mountains makes Sokobanja one of Serbia's most complete mountain spa destinations.
Insider tip — Sokobanja sits in a sheltered valley in eastern Serbia's Ozren and Rtanj mountains, where radioactive bicarbonate springs at 32°C have attracted visitors since Ottoman times for their rheumatic and cardiovascular benefits. The town's traditional Serbian architecture and dense oak forests create a peaceful, time-capsule atmosphere. Rtanj mountain's distinctive pyramidal silhouette dominates the skyline.