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Hakata Onsen Moto Yu

博多温泉 元湯はかたおんせん もとゆ

Public Bathhouse
Kyushu & Okinawa·Fukuoka

Day Use

Yes
13:00–18:00

except Thursday and Sunday

Bathing & Water

Natural onsen water

Uses natural hot spring water

Indoor BathYes

Enclosed indoor bathing area

元湯

Motoyu

Operated by · 安部隆典

Chloride
Color
colorless and transparent
Taste
slightly salty
Odor
odorless

Sodium-Calcium Chloride spring

pH 7.5Weakly alkalineHot source · 48°C
Composition fingerprint3.8 g/kg dissolved · Hypotonic
Na⁺53
Ca²⁺46
Cl⁻94
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻
table-salt anion — coats the skin and holds heat in.
Known good for
  • Warmingcold sensitivity
  • Aches & jointsstiff shoulders
  • Smooth skindry, rough skin

A hot (48.4 °C) sodium-calcium chloride spring, weakly alkaline and soft on the lips with a faint salty edge. Colorless and clear at the wellhead, the lab sample picks up a faint hydrogen sulfide note about seven hours after collection. Moderately mineralized at 3,750 mg/kg dissolved solids — noticeable body and the heat-retaining feel typical of chloride waters.

Sampled at wellhead·Analyzed Dec 11, 2019·株式会社CRC食品環境衛生研究所

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4.0

1 review

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Sergey M
1 year ago· edited

456. Hakata Onsen Motoyu, Fukuoka ★★ An old-school onsen for ¥500. The stated hours are 13:00 to 18:00 (except Thu and Sun). They stamp the Kyushu 88 Onsen stamp rally. The bath photo from the internet matches. Inside there is a small bath with clear water, with a light sulfur smell. The temperature was 46-47. The washing area is also very shallow. When I visited, the pipes were bubbling, hissing, and shooting jets of water, like underground steampunk. The hissing and bubbling went on for quite a while, and only quieted down after I had already gone outside. A very distinctive, cool place, strongly recommended for fans of old-school and underground onsen. 31.03.2025

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Last updated July 9, 2026