Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Kamegawa Onsen is one of the celebrated Beppu Hatto—the Eight Spring Zones of Beppu—in Oita Prefecture, Japan's thermal spring capital where more hot water flows from the earth each day than anywhere else on the planet, and where eight distinct spring zones each carry their own mineral personality and neighborhood character built around the act of communal bathing. The Kamegawa zone, named for the Turtle River flowing through this area of Beppu, contributes its distinct mineral character to the city's extraordinary diversity of thermal experiences, from the famous hells (jigoku) of colored boiling pools to the neighborhood sento-style public baths that serve daily bathing needs. Bathing in one of Beppu's eight spring zones means participating in a thermal resort tradition unlike any other on earth—a city where the spring is not the exception but the organizing principle of all urban life.
Insider tip — Kamegawa Onsen is a neighborhood bath in the Beppu area, one of Japan's most thermally active zones with eight distinct hot spring types. The sulfurous waters emerge at high temperatures and are diluted to bathing level before filling the tiled communal pools. This is a beloved local haunt rather than a tourist facility, so etiquette and quiet are especially valued. The seaside location adds a briny sea breeze that contrasts pleasantly with the mineral-laden steam.