Onsen OniOnsen Oni

Jigoku Onsen Seifusou

地獄温泉 青風荘．じごくおんせん あおふうそう．

Lodging
Minamiaso Onsen
Kyushu & Okinawa·Kumamoto
0967-67-0005jigoku-onsen.co.jp

Day Use

Yes

Bathing & Water

OnsenYes

Uses natural hot spring water

Capabilities

Mixed BathingYes

Shared bathing area for all genders

A bathing garment (yuami-gi, 湯浴み着) or swimsuit is required.

地獄温泉(すずめ湯混合泉)

Jigoku Onsen (Suzume-no-yu Blended Spring)

Operated by · 地獄温泉 清風荘

Mixed source

酸
Acidic
+ 含硫黄泉 · Simple
Classification

Hydrogen-Calcium Sulfate spring

A strongly acidic (pH 2.8) sulfur-bearing simple-thermal spring — an opalescent, milky-white water with a moderately astringent bite and a powerful rotten-egg note of H₂S. Free hydrogen sulfide runs to 9.3 mg/kg and total sulfur reaches 8.8 mg/kg, well into the sulfur-bearing band; metasilicic acid at 166 mg/kg adds a faint silica film on top of the pricking, distinctly sulfurous bite that defines the bathhouse's signature Suzume-no-yu pool.

pH
2.80
Acidic
Source temperature
48.0°C
Hot
Tonicity
0.53g/kg
Hypotonic
Free H₂S
9.30mg/kg
Very high
Radon
17Bq/kg
Low
Color
strong opalescent white turbidity
Taste
moderately astringent
Odor
strong hydrogen sulfide odor
Highlights
  • Ultra-acidic
  • Sulfur-rich
  • High silica

Analyzed Feb 8, 2016·株式会社 同仁グローバル·Cert no. K15107818

Programs

Loading map…

SM
Sergey M
1 year ago

431. Jigoku Onsen Seifusou, Aso, Kumamoto Onsen for 2000 yen. Operating hours listed as 10:00 to 17:00 (last entry at 15:00). They stamp the Kyushu 88 Onsen book. 1. Designated mixed bathing zone. Mandatory clothing provided (men get shorts). But the shorts are terribly uncomfortable (better to bring your own). Bath photos are from the internet, they're accurate. 1.1. Indoor men's bath, milky water with a sulfur smell. Temperature 45. The air is comfortable. 1.2. Outdoor zone. 1.2.1. Bath with milky water smelling of sulfur, temperature 45. 1.2.2. Bath with milky water smelling of sulfur, carbonated, temperature 40. 1.2.3. Cold oval bath in pebbles. 2. Separate men's zone. Indoor bath with large open windows, water is clear-to-milky white, temperature 43. The air is excellent. On paper I expected the place to be more interesting and cool, but it didn't click. The shorts were absolutely terrible for bathing — they should just give simple disposable ones instead.