Sijarinska Banja near Lebane in southern Serbia is remarkable for a geological curiosity unique in the Balkans — simultaneous hot springs at 72°C and cold springs at near-freezing temperatures emerging from the same hillside within meters of each other, creating a 'polythermia' phenomenon that has fascinated scientists and attracted bathers for centuries. The sulfurous thermal waters are enjoyed within a long thermal tradition associated with well-being, and the spa operates in the relaxed style of the former Yugoslav spa heritage. The peaceful Serbian countryside of the Jablanica district surrounding the spa offers walking trails largely untouched by international tourism in one of the Balkans' most authentic rural landscapes.
Insider tip — Sijarinska Banja near Lebane is famous in Serbia for having one of the highest naturally radioactive mineral waters in the Balkans, used cautiously in low doses for rheumatic and skin treatments under medical supervision. The rural setting in the Jablanica valley south of Leskovac gives this banja an unhurried agricultural character, with sunflower fields stretching toward the hill slopes in summer. The local spa hotel has a modest outdoor pool fed directly by the spring. Visitors are advised to consult on treatment protocols before extended soaking due to the radon content.
