Onsen OniOnsen Oni

Aoki Hot Spring

あおき温泉あおきおんせん

Other
Kyushu & Okinawa·Fukuoka
0942-62-1426instagram.com

Day Use

Yes

Bathing & Water

OnsenYes

Uses natural hot spring water

あおき温泉

Aoki Hot Spring
DrinkableSampled at wellhead
塩
Chloride
+ Bicarbonate

A sodium chloride hot spring with bicarbonate softness layered in, emerging at 66.3 °C — among Japan's hottest natural sources, cooled before bathing. The salty, heat-retaining chloride character gives the water real body, while 64 mg/kg of metasilicic acid leaves a thin silica film that makes skin feel smoother afterwards.

Source temperature
66.3°C
Hot
Tonicity
1.59g/kg
Hypotonic
Free CO₂
1.20mg/kg
Low
Free H₂S
0.10mg/kg
Low
Highlights
  • Top-decile hot
  • High silica

Analyzed Dec 4, 2012·財団法人 九州環境管理協会·Cert no. 福岡県第1号

Programs

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SM
Sergey M
1 year ago

393. Aoki Hot Spring, Kurume, Fukuoka Onsen for 600. Operating hours stated as 10:00 to 22:00 (closed Wednesdays). They stamp the 88 Onsen of Kyushu book. 1. Indoor zone. Breathing is comfortable. 1.1. Main bath, clear pale yellow water, temperature 40. 1.2. Second bath, clear pale yellow water, temperature 43-44. 1.3. Cold bath. 2. Outdoor rectangular bath, clear pale yellow water, temperature 40. Overall decent, but didn't leave a strong impression.