Granit Thermal and Adventure Bath (Zalakaros)

The Zalakaros thermal bath complex (operated by Gránit Gyógyfürdő Zrt. and publicly branded Zalakarosi Fürdő) sits atop one of the hottest thermal sources in Hungary, discovered in 1962 when oil-prospecting drilling struck a 96°C source. Development of the bath began in 1965 and has continued in stages ever since. The water is alkaline-chloride with hydrogen-carbonate character and an unusually rich combination of iodine, bromine, sulphur, and fluoride, a mineral profile local sources describe as unique in Europe. The complex is officially recognized as a certified medicinal water site by Hungarian health authorities.