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Amagi Onsen

Asakura (Amagi), Fukuoka (Kyushu), Japan
Amagi Onsen
Location
Asakura (Amagi), Fukuoka (Kyushu), 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

Amagi Onsen is located in Asakura, a city in the Chikugo region of Fukuoka Prefecture whose Amagi area preserves a historic townscape along the former Nagasaki Kaido — one of the great highways of the Edo period that connected Nagasaki, Japan's sole gateway for foreign trade during the Sakoku closed-country policy, with Kokura and ultimately Edo (Tokyo), and along which Dutch and Chinese traders, their exotic goods, and occasionally Western medical and scientific knowledge made their way into a Japan officially closed to the outside world. The surrounding Asakura area is also noted for the quality of its agricultural produce in the fertile Chikugo River plain, and the Amagi Inari Shrine draws worshippers from across the region to its forested hillside sanctuary. The onsen draw on silica-rich geothermal waters from the volcanic geology of this part of Kyushu, providing mineral bathing in a historic townscape where the echoes of Japan's great Nagasaki highway add cultural depth to the simple pleasure of thermal immersion.

Insider tip — Amagi Onsen lies in the town of Asakura in central Fukuoka Prefecture, where the gentle Chikugo River valleys open onto productive farmland. Sodium-chloride spring water at 41 degrees promotes vigorous circulation and is celebrated by locals for easing fatigue after fieldwork. The area's kusu camphor trees and antique water wheels add rustic charm to the bathing excursion.
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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).