Yunomoto Onsen
湯之元温泉ゆのもとおんせん
Japan's oldest carbonated spring inn, open since 1902
Day Use
YesAdults 650 yen, children (age 3-12) 300 yen. Last entry 20:30.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Bathing Arrangements
Shared bathing area for all genders
Policies & Services
Allows entry with visible tattoos
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
On-site or nearby parking available
Highlights
Drinking SpringPrograms
About
Yunomoto Onsen has been drawing bathers since 1902, and claims to be Japan's oldest inn built on a high-concentration carbonated spring. The bathhouse has three options: a warm indoor bath whose water turns golden as the cold spring is heated, an unheated indoor cold carbonated bath, and a small open-air rotenburo with a gentler carbonated soak. A sauna rounds out the lineup. The spring water is also sold for drinking at the front desk. Regulars tend to be locals, so the baths can fill up on weekday afternoons.
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Last updated September 22, 2026