Hot springs and public baths: spring types, etiquette, and what to expect.
5 posts
岩盤浴 is a Japanese heat format that is not a sauna and not a bath: you lie on heated stone slabs in a 40°C room, dressed, for a long time. What it is, how a session goes, what it does to heart rate compared with a sauna, and what the watch makes of it.
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Half-body and full-body bathing differ in immersion depth, water pressure, and how quickly they feel warm. Compare practical timing, comfort, and heart-rate caveats.
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One is defined by a law about the water, the other by a law about the building. Price, water, atmosphere, and what each is good for, plus the third thing, the super sento, that most people actually mean.
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Wash before you get in, keep the towel out of the water, tie your hair up, know the tattoo situation before you arrive. Every rule of the Japanese hot spring in order, with the reason behind each, and a note on the watch.
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Japanese onsen are classified by what is dissolved in the water. Here is each official type, its typical temperature and feel, a famous example, and what it means for your skin, your watch, and your session log.
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Furolog