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Osaka Sakurajima Onsen

Osaka, Kansai, Japan
Osaka Sakurajima Onsen
Location
Osaka, Kansai, 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

Osaka's northern bay area along the Yodo River mouth, where the historic water transport routes connecting Kyoto and Osaka Bay converge, was once the city's most vital commercial waterway district, and the Sakurajima area adjacent to Universal Studios Japan continues the tradition of entertainment and commercial energy in one of Osaka's most dynamic urban bay districts. Osaka Sakurajima Onsen draws on sodium and bicarbonate thermal waters from deep geological wells beneath the Osaka bay plain, offering restorative baths in the Sakurajima waterfront area of northern Osaka where Universal Studios Japan, the Osaka Expoland site, and the bay water scenery create an entertainingly active spa setting within reach of the city's northern bay attractions. The Universal Studios Japan theme park with its international entertainment attractions, the Osaka Bay area cycling and walking paths along the reclaimed waterfront, and the views across Osaka Bay toward the Kansai International Airport island create an accessibly vibrant and bay-facing spa destination in northern Osaka.

Insider tip — Sakurajima Onsen occupies the Nishiyodogawa ward on the western edge of Osaka, near the old industrial port district along the Yodo River. The mildly bicarbonate spring water at 40 degrees Celsius is popular with factory workers and dock employees seeking after-shift relaxation. The facility retains a functional Showa-era character with high ceilings and large communal tubs. Combine a visit with a stroll along the riverside promenade at sunset for a quintessentially working-class Osaka experience.
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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).