Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Higashinaruse Spa is nestled in Higashinaruse Village, one of Akita Prefecture's small highland communities set amid the sweeping beech forests and mountain ridges of the Ou Mountains that form the spine of northern Honshu. The area is part of Akita's interior mountain zone where traditional village life, seasonal agriculture, and deep forest culture have been maintained through generations of self-sufficient community living in one of Japan's snowiest and most remote landscapes. The thermal waters here invite travelers seeking authentic rural Tohoku immersion to slow down and experience the unhurried beauty of a mountain village where nature dominates and ancient rhythms of life persist quietly.
Insider tip — Higashinaruse Spa emerges in the secluded Naruse River valley of eastern Akita, a corridor of intact broadleaf forest sheltering Japanese serow and black bears. The bicarbonate water is particularly valued for its warming effect during the long, snow-heavy winters that isolate this mountain community. A visit in early May rewards with vivid cherry blossoms blooming weeks after they have already faded in the lowlands.