Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Fukuchiyama, in the northern Kyoto Prefecture mountains, is a castle town built around the domain headquarters of Akechi Mitsuhide, the Oda Nobunaga general who dramatically betrayed his master at Honnoji in 1582 in one of the most pivotal moments of Japanese history. Fukuchiyama Onsen Kyoto draws on chloride-rich thermal waters from the geothermal resources of the Tamba highlands, offering warming baths in a city whose strategic mountain pass position between Kyoto and the Sea of Japan coast has given it deep historical significance across centuries of feudal history. The rugged Tamba mountain landscape, famous for matsutake mushrooms, Tamba black beans, and traditional ceramics, provides an authentic rural Kyoto spa experience far from the tourist crowds of the ancient imperial capital.
Insider tip — Fukuchiyama Onsen lies in the northern Kyoto basin, a historic castle town where the Yura River valley channels cool mountain air against the warm 41°C sodium-chloride baths. Locals have bathed here for generations, and the mineral content leaves a gentle warming sensation that persists long after you towel off. The nearby castle ruins make for a pleasant pre-soak walk on crisp autumn mornings.