Onsen OniOnsen Oni

Kounkaku.Ooedo Onsen

大江戸温泉物語 幸雲閣おおえどおんせんものがたり こうくも閣

Other
Naruko Onsen-kyoNaruko Onsen
Tohoku·Miyagi
050-3615-3456ooedoonsen.jp

Day Use

Yes

Water treatment

from Article 18 disclosure
  • Added water
    Yes
  • Reheated
    No
  • Recirculated
    Yes
  • Disinfected
    Yes
    塩素系薬剤
  • Bath additives
    No

霊泉湯A

Reisen-yu A
硫
Sulfate
+ Bicarbonate
Classification

Sodium Sulfate-Bicarbonate spring

A sodium-led sulfate-bicarbonate spring (legacy name 'soda-glauber' style), pairing the settled body of sulfate water with bicarbonate softness. Weakly alkaline, it sits in the Japanese beauty-water family. The source emerges at a scalding 98.8 °C — among Japan's hottest natural sources — and is diluted with water before reaching the bath. A generous 355 mg/kg of metasilicic acid leaves the kind of thin silica film that makes skin feel noticeably smoother.

Source temperature
98.8°C
Hot
Tonicity
2.03g/kg
Hypotonic
Free CO₂
106mg/kg
Low
Free H₂S
0.10mg/kg
Low
Color
colorless and transparent
Taste
tasteless
Odor
odorless
Highlights
  • High silica
  • Top-decile hot

Analyzed Apr 22, 2016·公益財団法人 宮城県公害衛生検査センター·Cert no. 公衆検第1046号

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SM
Sergey M
1 year ago

226. Kounkaku / Ooedo Onsen, Naruko Onsen Visited on higaeri for 4 stickers on the local tegate (listed from 15:00 to 18:00). Photos of baths from the internet match reality. A great spacious indoor bath with a black bottom. Water is clear, temperature 41-42, with a mineral rock formation in the center like an Alien egg. Breathing inside is fine. Along some edges of the bath there are barrier tapes for some reason, which slightly spoils the look. Outdoor small bath set in rocks. Standing, you can see a house and forest; lying in the bath, the balcony blocks the view. Water is clear-brownish, temperature 40-41. A worthy place, worth visiting for the interesting indoor bath.