noun
saltwater bath; hot salt bath
A bath with salt added, often for health or relaxation. Can refer to a hot bath at home or at a spa.
疲れた日は塩風呂に入るとよく温まる。
On tired days, taking a salt bath warms you up well.
この温泉には塩風呂がある。
This hot spring has a saltwater bath.
Compound of 塩 (shio, 'salt') + 風呂 (furo, 'bath'). The alternate kanji 潮 (shio, 'tide/brine') is also used.