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Yumotosanso Yunokuchi Hot Spring

湯元山荘 湯ノ口温泉ゆもとさんそう ゆノくちおんせん

Lodging
Kansai·Mie
0597-97-1126seiryusou.com

Day Use

Yes

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

OnsenYes

Uses natural hot spring water

Policies & Services

TattooYes

Allows entry with visible tattoos

Unverified

WashingYes

Shower, wash stations, soap and shampoo provided

Water treatment

Pure source-flow
from Article 18 disclosure
  • Added water
    No
  • Reheated
    No
  • Recirculated
    No
  • Disinfected
    No
  • Bath additives
    No

湯ノ口温泉

Yunokuchi Onsen

Operated by · 熊野市

Sampled at wellhead
塩
Chloride
Classification

Sodium-Calcium Chloride spring

A sodium-calcium chloride spring served at 44.3 °C — among the hotter natural sources in the region. Weakly alkaline and soft on the skin, with 62.7 mg/kg of metasilicic acid leaving a faint silica film. The water carries a light yellow-brown tint at the source, a salty tang on the lips and a mild mineral note. Delivered straight to the tubs as untreated source flow — no dilution, heating, recirculation or disinfection.

Source temperature
44.3°C
Hot
Tonicity
1.37g/kg
Hypotonic
Radon
15Bq/kg
Low
Color
faintly yellow-brown
Taste
slightly salty
Odor
faint mineral note
Highlights
  • High silica

Analyzed Sep 11, 2008·三重県保健環境研究所

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Forest

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Dinara

1 year ago

Radon spring in Kumano. Very cozy, beautiful, hot (kakenagashi, 44.7 degrees). Colorless and odorless, but the taste (according to the description) is slightly bitter-salty. Sitting is hot but pleasant. Outside there's a regular bath, a lying bath, and a deep standing bath (96 cm). Inside is just a hot bath. Azaleas were blooming beautifully (already finished now). Especially nice in winter. Asked about tattoos at the entrance, got an uncertain "probably fine" (seems like nobody had asked before). You can conclude that tattoos are most likely OK, there's no outright ban, but no official tattoo-friendly policy either. Besides the water composition sign, there's a proud sign about "we used local wood." And they sell milk in glass bottles.