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Moji Onsen Port Spa

Moji Ward, Kitakyushu, Fukuoka Prefecture, Japan
Moji Onsen Port Spa
Location
Moji Ward, Kitakyushu, Fukuoka 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

Moji Onsen Port Spa is located in Moji, the historic port district of Kitakyushu at the northern tip of Kyushu, separated from Honshu by the narrow Kanmon Straits — one of the world's busiest shipping lanes, where vessels carrying iron ore, coal, and manufactured goods have passed for centuries and where the Kanmon Bridge and undersea pedestrian tunnel now connect Japan's two main islands. The chloride-rich thermal waters of Moji's spa draw from coastal geothermal sources beneath this active maritime gateway, offering warm saline baths that connect the bather to the sea that has defined Moji's identity as an international port and the gateway through which Kyushu's industrial products flowed to the world. Moji Retro — the beautifully preserved Meiji and Taisho-era western-style commercial buildings along the port waterfront — provides a cinematic backdrop of elegant early 20th-century port architecture for this coastal thermal wellness experience at the northern edge of Japan's southernmost main island.

Insider tip — Moji Onsen Port Spa overlooks the narrow Kanmon Strait where freighters and ferries pass between Kyushu and Honshu in a constant maritime procession. The sodium-chloride spring is particularly invigorating with sea-level sea air mixing through the open terrace windows. Mojiko Retro district's Meiji-era European-style architecture is a five-minute walk, making this a rewarding cultural and thermal pairing.
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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).