Johana Onsen Nanto

Johana, Nanto, Toyama, Japan

Location: Johana, Nanto, Toyama, Japan
Water type: bicarbonate
Temperature: 38 °C
pH: 8

Water profile

Thermicity

Neutral

38 °C

LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation

Restorative

LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy

Standard buoyancy

LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Johana Onsen is a traditional hot spring in the Johana area of Nanto city, Toyama Prefecture, nestled in the Inami district known throughout Japan for its extraordinary 500-year-old tradition of woodblock printing and elaborate wooden transom carvings crafted by master artisans whose work adorns temples and townhouses across the country. The bicarbonate mineral waters provide gentle warmth and skin-soothing benefits, offering a reflective and unhurried bathing experience in a town where the sound of chisels on wood echoes through streets lined with craft workshops. The combination of traditional artisanal heritage and therapeutic thermal bathing makes Johana a quietly rewarding destination in inland Etchū.

Insider tip — Johana Onsen occupies the former silk-weaving town of Johana in the Nanto basin of Toyama, a region where gassho-zukuri farmhouses dot the surrounding hills. The bicarbonate waters are mild and restorative, offered in small facilities that reflect the unhurried pace of rural Chubu. The Johana area is a gateway for hiking toward Gokayama and the deeper mountain valleys. Spring evenings here, with cuckoos calling from the cedar forests, have a quality of calm hard to find elsewhere in Japan.

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