Matsuura Onsen Nagasaki
- Location
- Matsuyama, Ehime Prefecture, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Matsuura Onsen Nagasaki is located in Matsuura City in the northern part of Nagasaki Prefecture, facing the Genkai Sea, a city historically important for coal mining during Japan's Meiji-era industrialisation and today celebrated for the abalone and Japanese horse mackerel (aji) fishing culture that makes Matsuura one of Kyushu's most authentic coastal seafood towns. The chloride-rich hot spring waters draw from the coastal geothermal system of northern Nagasaki's sea-facing terrain, offering warm saline baths traditionally enjoyed for relaxation and the easing of muscle fatigue after a day of fishing or coastal walks. The combination of thermal bathing and fresh catch seafood — Matsuura's aji is among the most prized in Japan — makes the onsen town one of Kyushu's most satisfying destinations for visitors seeking the authentic overlap of food culture and hot spring bathing.