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Nyuzen Onsen

Nyuzen, Toyama, Japan
Nyuzen Onsen
Location
Nyuzen, Toyama, 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

Nyuzen Onsen serves a coastal agricultural community on the eastern edge of Toyama Bay where the Hayatsuki River delta has created some of Toyama Prefecture's most productive fishing grounds, the rich cold waters of the bay producing the exceptional hairtail, yellowtail, and squid that make Toyama's seafood among the most prized in Japan for its quality and variety. The town's position between the Kurobe River delta to the west — whose outwash plain contains some of Japan's most mineral-rich agricultural soils — and the Niigata coast to the east places it in a landscape of agricultural abundance backed by the Northern Alps whose snowfields release meltwater through the summer months to maintain the rivers that give Toyama's landscape its characteristic lushness. The onsen's siliceous geothermal mineral waters, drawing from the coastal geological resources of Toyama's eastern shore, provide restorative bathing in a fishing and farming community where the Japan Sea's maritime richness and the alpine watershed above combine to create a landscape of exceptional natural productivity.

Insider tip — Nyuzen sits on the coast of Toyama Bay in eastern Toyama Prefecture, where the Japan Alps descend almost directly to the sea, creating one of the most scenic coastal profiles in Japan. The onsen here offer views toward the Tateyama mountain range, whose peaks are perpetually snow-capped and visible on clear days from the bathing galleries. The local specialty is hotaru ika firefly squid, in season each spring, making a combined dining and thermal bathing visit to Nyuzen a memorable coastal Japan experience.
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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).