Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Togane Onsen serves a city on the gently rolling agricultural plain of central Chiba Prefecture, where vast fields of rice, peanuts, and vegetables extend toward the Pacific coast in one of Japan's most productive lowland farming regions, the Kujukuri Plain whose long straight coastline — stretching nearly 60 kilometers without interruption — is one of the longest sandy beaches in Japan, popular with surfers who ride the consistent swells coming in from the open Pacific. The surrounding agricultural landscape of Togane has supplied Tokyo's markets with fresh produce since the Edo period, when the fertile Shimofusa plain was recognized as among the most productive grain-growing land within supply distance of the capital. The onsen's siliceous mineral waters, drawn from the deep Kanto sedimentary aquifer, provide warm therapeutic bathing for the farming community of a city whose flat, open landscape connects the productivity of the land to the constancy of the Pacific horizon.
Insider tip — Togane lies in the agricultural lowlands of central Chiba, a flat alluvial plain east of Tokyo Bay. The onsen here taps deep Pleistocene sedimentary aquifers that yield sodium-chloride waters characteristic of the Boso Peninsula thermal zone. The dark, mineral-rich water typical of Chiba's coastal plain onsens is prized for its moisturizing qualities and warming effect in the cool months.