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Ryugasaki Onsen Ibaraki

Ryugasaki, Ibaraki, Japan
Ryugasaki Onsen Ibaraki
Location
Ryugasaki, Ibaraki, Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Ryugasaki, in southern Ibaraki Prefecture, is a growing suburban city between Tokyo and Mito whose traditional Kanto plain agricultural landscape has been preserved amid suburban development, maintaining rice paddies and vegetable farming in the fertile volcanic loam soils of the Kashima lowlands east of the Joso railway corridor. Ryugasaki Onsen Ibaraki draws on sodium and bicarbonate thermal waters from the geological resources of the southern Ibaraki lowlands, providing warm restorative baths in a suburban community whose agricultural setting, convenient location on the Tokyo-Mito transport corridor, and the traditional Ibaraki food culture of natto, dried sweet potatoes, and fresh lake fish create an accessible and unpretentious spa setting. The Ryugasaki City Air Base with occasional aviation events, the traditional Ibaraki natto fermented soybean culture, and the cycling routes through the flat Kanto plain rice paddies of southern Ibaraki create a straightforwardly pleasant rural and suburban spa destination.

Insider tip — Ryugasaki is a suburban city south of Tsukuba drawing a bicarbonate spring from the deep Kanto sedimentary basin. The mildly alkaline water produces a characteristic smooth skin feel without heavy mineral odor. This unpretentious neighborhood facility is a favorite of local families and retired residents seeking a calm, affordable thermal bath within easy reach of greater Tokyo.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).