ThermaeExplore the map →

Kochi Kagami Onsen

Kochi (Kagami), Kochi, Shikoku, Japan
Kochi Kagami Onsen
Location
Kochi (Kagami), Kochi, Shikoku, 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

Kochi Kagami Onsen serves the Kagami area of Kami City in the forested uplands of northern Kochi Prefecture, where the Kagami River descends from the central Shikoku mountains through a valley whose clear waters, natural pools, and dense cedar-and-oak forest create the characteristic atmosphere of Kochi's mountain interior — a landscape of green depth and running water that stands in vivid contrast to the Pacific coast communities just an hour's drive to the south. The Kami City area, formed by the merger of several highland communities, preserves traditional aspects of Shikoku mountain life including forestry traditions, local sake brewing, and the community festivals that mark the agricultural seasons in highland Kochi. The onsen's siliceous geothermal mineral waters, tapping into the thermal resources of the Shikoku's metamorphic geological foundation, provide warm therapeutic bathing in a mountain community where the silence of the forest and the sound of running water define the ambient texture of daily life.

Insider tip — Set in the Kagami River corridor northeast of central Kochi City, this onsen taps bicarbonate springs rising through the alluvial sediments of the river plain. It is a neighborhood facility that few foreign visitors discover, giving it an authentic local character typical of provincial Shikoku. The water is clear with a faint mineral salinity that warms the body gradually. In June, fireflies appear along the Kagami River banks at dusk, a spectacle best enjoyed by soaking, then walking the riverside path after dark.
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).