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Hondani Onsen

Tosa, Kochi, Japan
Hondani Onsen
Location
Tosa, Kochi, Japan
Water type
sulfurous
Temperature
44 °C
pH
6.5

Water profile

Thermicity
Sedative
44 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Hondani Onsen is a hot spring in Saijo City, Ehime Prefecture on the island of Shikoku, situated in the mountainous interior of Saijo, a city famous for the extraordinary phenomenon of uchikomachi, the natural artesian springs that bubble up through the streets and courtyards of the historic town center, where residents use these free-flowing cold mineral waters for drinking, cooking, and cooling their homes and shops. Saijo's thermal springs complement this remarkable tradition of natural spring abundance, and the sulfurous and simple mineral waters of Hondani Onsen add a hot thermal dimension to the city's exceptional relationship with underground water resources. Ehime Prefecture on Shikoku is home to the famous eighty-eight temple pilgrimage circuit associated with the Buddhist saint Kobo Daishi, and the restorative hot springs of Hondani provide a place of physical renewal for pilgrims and visitors traversing the mountains of this sacred island.

Insider tip — Hondani Onsen nestles in a steep river valley in Kochi Prefecture, accessible only by a narrow mountain road that rewards the effort with sulfurous waters of remarkable purity. The outdoor bath perches directly above the Hondani River, offering a mesmerizing view of the emerald gorge below. Water temperatures run high, so alternate between the hot bath and the cool river air to regulate your body heat. The Shikoku Pilgrimage route passes nearby, and weary henro pilgrims have been refreshing themselves here for generations.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 44 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).