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Amagi Onsen Fukuoka

Amagasaki, Fukuoka Prefecture, Japan
Amagi Onsen Fukuoka
Location
Amagasaki, Fukuoka Prefecture, Japan
Water type
sodium chloride
Temperature
43 °C
pH
7.3

Water profile

Thermicity
Sedative
43 °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

Amagi Onsen Fukuoka is located in Amagi City in the Asakura region of Fukuoka Prefecture, an inland rural area of the Chikugo River basin known for its traditional sake brewing, organic farming, and the spectacular Homan Mountain pilgrimage routes that draw devotees of Shugendo mountain asceticism from across Kyushu. The chloride-rich hot spring waters draw from the thermal resources of the Kyushu Mountains, providing warming mineral baths reflecting the deep geothermal energy of the volcanic island arc, particularly appreciated by agricultural workers and pilgrims who have long used the local springs for physical recovery. Amagi sits on the Chikugo River — the largest river in Kyushu — whose fertile valley has sustained one of the island's richest farming cultures for millennia, and the onsen's rural setting amidst rice paddies and persimmon orchards makes it one of the most quietly authentic bathing destinations in the Fukuoka hinterland.

Insider tip — Amagi Onsen lies in the Asakura highlands of Fukuoka Prefecture, where the Chikugo River watershed begins its descent from the Kyushu Mountains through terraced rice fields and cedar plantations. The sodium-chloride spring water here warms visitors thoroughly even in the cool mountain air of the interior plateau. The area is far less touristed than the coastal hot springs of Nagasaki or the resort complexes of Beppu, preserving a local atmosphere of quiet rural bathing culture. Visit during late September when the surrounding rice paddies turn gold and the mountain ridge to the south catches the first autumn mists.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 43 °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).