Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
'Istochniki' (springs) is a hot-spring site in the city of Jilin, in the province of the same name, northeastern China. The sulfurous water reaches 42°C (pH 6.5), with an indoor bath and an outdoor rotenburo-style bath.
Insider tip — Istochniki sits in Jilin Province near the Russian border, where volcanic activity beneath the Changbai mountain region feeds sulfurous springs. The waters carry a distinctive egg-like aroma typical of high-sulfur sources in this corridor. Best visited in winter when the steam creates dramatic contrast against the frozen landscape. Locals prize these springs for skin conditions and joint relief.