noun
hot spring water
Refers to water from a natural hot spring, often used in contexts of bathing, drinking, or bottling.
この温泉地では、温泉水を使った化粧品が人気です。
In this hot spring area, cosmetics made with hot spring water are popular.
温泉水を飲むと健康に良いと言われています。
It is said that drinking hot spring water is good for your health.