Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
In Wiesbaden, the Kochbrunnen — first documented in 1366 as Bryeborn — was the centerpiece of the city's 19th-century cure culture, drawing royalty and health-seekers from across Europe daily to its angular fountain designed by architect Wilhelm Bogler in 1887-1888. Nearby, the Kaiser-Friedrich-Bad, built between 1910 and 1913 by municipal architect August O. Pauly on the site of former Roman sweat baths, unfolds an Art Nouveau decor where the tepidarium and sudatorium are lined with colored ceramic tiles from the workshop of a pupil of Henry van de Velde.
This dual heritage — a historic open-air spring and a carefully restored Art Nouveau bathhouse — anchors Wiesbaden among Germany's great spa towns, carrying forward its past as an international Gilded Age resort.
Insider tip — Wiesbaden possesses 26 natural hot springs — the most of any German spa city — with the Kaiser-Friedrich-Therme and Aukammtal complex offering the full range of saline thermal bathing. The sodium-chloride-rich water rises at up to 66°C and is cooled for the elegant marble pools that made Wiesbaden Europe's 19th-century aristocratic spa capital. The historic Kurhaus district around the thermal baths remains one of Germany's most beautiful spa promenades. Weekend mornings fill with Frankfurt day visitors, so arrive Thursday or Friday for a quieter experience.