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Gyoda Onsen Saitama

Gyoda, Saitama Prefecture, Japan
Gyoda Onsen Saitama
Location
Gyoda, Saitama Prefecture, 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

Gyoda, in northern Saitama Prefecture near the Tone River, is celebrated for its remarkable concentration of ancient burial mounds including the Sakitama Ancient Burial Mounds site, home to eight large keyhole-shaped kofun tumuli from the fifth and sixth centuries and the famous Sakitama Inariyama Sword bearing a 115-character gold inscription dating to 471 CE. Gyoda Onsen Saitama draws on sodium and bicarbonate thermal waters from the geothermal resources beneath the north Kanto alluvial plain, providing warm restorative baths in a city whose extraordinary archaeological heritage represents some of the earliest documentary evidence of political authority and written language use in ancient Japan. The Sakitama Burial Mounds Historical Park, the Gyoda City Historical Museum housing remarkable Iron Age artefacts, and the local Gyoda tanuki raccoon dog festival create a distinctive cultural backdrop for thermal spa exploration in this historically significant northern Saitama city.

Insider tip — Gyoda sits on a flat alluvial plain north of Kita-Kanto and draws mild bicarbonate thermal water at 40°C from sedimentary aquifers below the rice-growing lowlands. The town is celebrated for its Oshi Castle ruins, one of Japan's premier castle sites, and the pairing of historical sightseeing with an evening sento soak is a local tradition. The water's smooth bicarbonate character soothes tired legs after a day of walking the earthworks. Gyoda's old silk-dyeing quarter nearby offers additional cultural depth for the curious visitor.
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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).