Haga Onsen Roman no Yu

Haga, Tochigi, Japan

Location: Haga, Tochigi, Japan
Water type: sodium chloride, thermal
Temperature: 40 °C
pH: 7.3

Water profile

Thermicity

Sedative

40 °C

LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation

Restorative

LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy

Effortless float

LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

In a traditional Japanese onsen, bathers immerse themselves in a serene and rejuvenating experience. This communal bathing tradition emphasizes purification and relaxation. Guests typically begin by washing themselves in a designated area, then proceed to soak in the warm waters. Social norms dictate modesty and respect for others, encouraging a tranquil atmosphere. The onsen is a space for self-reflection and connection with nature, fostering a sense of calm and well-being. Guests often engage in contemplative moments, letting go of daily worries.

Insider tip — Haga-machi in Tochigi Prefecture is an agricultural town on the Kanto Plain, known as one of Japan's premier strawberry-producing areas (Tochigi is famous for its Tochiotome and Skyberry strawberry varieties, best picked January–May). Roman no Yu draws from the deep Kanto basin aquifer for its sodium-chloride soak. The Honda R&D facility and autonomous vehicle testing area operates nearby — a quietly surreal combination of cutting-edge automotive technology and traditional rural bathing culture.

Find hotels nearby →Tickets & activities →See the map & practical info →