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Tateyama Onsen Chiba

Tateyama, Chiba Prefecture, Japan
Tateyama Onsen Chiba
Location
Tateyama, Chiba Prefecture, Japan
Water type
sodium chloride
Temperature
41 °C
pH
7.3

Water profile

Thermicity
Sedative
41 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

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

Buoyancy
Effortless float
LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

Tateyama, at the southern tip of the Boso Peninsula in Chiba Prefecture where Tokyo Bay meets the Pacific Ocean, is the terminus of both the Uchibo and Sotobo coast railway lines and a significant port city whose strategic position at the mouth of Tokyo Bay has given it a long and important maritime heritage since the Edo period. Tateyama Onsen Chiba provides chloride-rich coastal thermal waters from the marine geological formations of the Boso Peninsula tip, offering warming maritime baths in a city that combines fishing and maritime trade heritage with the natural beauty of the dramatic cape coastlines where bay and Pacific converge. The famous Tateyama Bay views of Mount Fuji on clear winter days, the Tateyama Castle ruins above the city, and the flower sea of Nokogiriyama's sculpted hilltop above the bay make Tateyama a rewarding coastal thermal destination at the very tip of Chiba's Boso Peninsula.

Insider tip — Tateyama sits at the southern cape of the Boso Peninsula, Japan's warmest mainland region, where shallow coastal aquifers yield briny sodium-chloride waters. The city overlooks Tokyo Bay and the Pacific simultaneously, giving bathers panoramic ocean vistas from some facilities. The mild, almost subtropical microclimate means outdoor baths are comfortable even in winter. Try arriving at sunset when the bay reflects golden light across the water.
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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 sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).