Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
The Çekirge Kaplıcaları, in a Bursa district long linked to Ottoman thermal baths, deliver bicarbonate, sulfurous water at 50°C, pH 6.5, with pools and a sauna.
Insider tip — Thermal facility at the police guesthouse (poliscevi) in Çekirge, Bursa's legendary spa district. All buildings in Çekirge have direct access to the Ca-Mg-SO₄-HCO₃ springs (47–78°C, 1,164 mg/L minerals) that have attracted visitors since antiquity and were celebrated by Ottoman sultans.