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Osaka Onsenkyo

Gero, Gifu Prefecture, Japan
Osaka Onsenkyo
Location
Gero, Gifu Prefecture, Japan
Water type
thermal
Temperature
41 °C
pH
7.3

Water profile

Thermicity
Sedative
41 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Balancing
LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesCalcium

Osaka Onsenkyo is a hot spring resort area in the greater Osaka metropolitan region of Japan, representing the perhaps surprising presence of genuine geothermal mineral bathing resources beneath and around one of Asia's largest urban conurbations, where deep drilling has tapped subsurface thermal water sources to bring the restorative experience of natural hot spring bathing to city residents without requiring the journey to a mountain or coastal resort destination. Osaka, Japan's second city and the commercial and culinary capital of the Kansai region, is celebrated internationally for its vibrant food culture, its bold and gregarious personality, and its historic monuments including Osaka Castle and the ancient shrine of Sumiyoshi Taisha, and the hot spring cluster adds a wellness dimension to the city's comprehensive urban amenity offer. The simple mineral waters of Osaka Onsenkyo provide accessible thermal bathing for the residents and visitors of this dynamic metropolitan center, demonstrating that the Japanese commitment to hot spring bathing culture extends even into the dense urban fabric of Japan's greatest commercial cities.

Insider tip — Osaka Onsenkyo sits in the mountain interior of Gifu Prefecture near Gero, a region recognized as one of Japan's three great onsen alongside Kusatsu and Arima. The coordinates in central Gifu place this spring in a valley landscape shaped by the Hida and Kiso river systems, with steep forested ridges rising above traditional spa towns. The thermal water here is colorless and smooth, characteristic of the Gero-area springs prized for their skin-softening alkalinity. Traditional wooden ryokan lining the riverside have made this corridor a celebrated overnight bathing destination for visitors from Nagoya and the Kansai region.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).