“Cold water spa“ is not an official technical term, but rather a descriptive term for baths that use natural, mineral-rich spring water which remains cool and is not heated to traditional wellness temperatures. Unlike traditional thermal baths with warm thermal water (at least approx. 20 °C) and spa facilities, the focus here is on refreshment on hot days – more of a summer retreat than a cosy, warm experience. Baths such as the Bad Vöslau Thermal Baths or the Fischau Thermal Baths, with temperatures of around 19–21 °C, lie precisely at this temperature threshold: they use natural, mineral-rich spring water and are often referred to as ‘thermal baths’, but do not count among the typical ‘warm’ thermal baths.