ThermaeExplore the map →

Yao Onsen Osaka

Yao, Osaka Prefecture, Japan
Yao Onsen Osaka
Location
Yao, Osaka Prefecture, 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

Yao, in the eastern part of Osaka Prefecture adjacent to Higashiosaka and the Ikoma Mountains, is an industrial city known for its traditional metal processing and manufacturing heritage, the Yao Airport — a small municipal aviation facility serving private and business aircraft — and the Yao City Museum's archaeological collections documenting the extraordinary Yayoi and Kofun period cultural heritage of the eastern Osaka plain. Yao Onsen Osaka draws on sodium and bicarbonate thermal waters from the geological resources of the eastern Osaka basin, providing restorative baths in an industrial city whose manufacturing heritage, traditional eastern Osaka corridor culture, and mountain backdrop of the Ikoma range create a practically located spa destination with easy access to both Osaka's entertainment culture and the Nara Prefecture sacred landscape via the Kintetsu railway. The Yao City Museum's ancient history collections, the Ikoma Mountain hiking trails and the Ikoma cable car ascending to the Hirakata-Ikoma highland park, and the easy Kintetsu access to Nara's UNESCO sacred landscape make Yao a conveniently located spa destination on the Osaka-Nara corridor.

Insider tip — Yao Onsen serves the residential city of Yao on the eastern flank of the Osaka plain, where the Ikoma mountain range frames the horizon to the east. The slightly alkaline bicarbonate water at 40 degrees Celsius leaves skin noticeably smooth, a quality Osaka bathers call bijin-no-yu, meaning beauty water. The facility is modest and family-oriented, with separate sections for adults and young children. Evenings bring a pleasant cross-section of Yao residents unwinding after work.
Find hotels nearby →Tickets & activities →See the map & practical info →

Nearby

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).