Itako Mizuhara Onsen

Itako, Ibaraki, Japan

Location: Itako, Ibaraki, Japan
Water type: thermal
Temperature: 38 °C
pH: 7.3

Water profile

Thermicity

Neutral

38 °C

LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation

Balancing

LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy

Standard buoyancy

LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesCalcium

Itako Mizuhara Onsen is a simple thermal spring in Ibaraki Prefecture, near the renowned Suigo water country of the Kanto region where iris flowers bloom in vast seasonal displays and ancient waterways weave through low-lying plains approaching Tokyo Bay. The simple alkaline waters offer the gentle, skin-softening soak that defines Japan's approachable simple springs, ideal for day visitors from the greater Tokyo metropolitan area seeking natural thermal bathing without distant mountain travel. Set within the flatland landscape of Ibaraki's Suigo area, Itako Mizuhara carries the quiet, lowland onsen character distinct from the highland volcanic springs of Japan's mountain interior.

Insider tip — Itako Mizuhara Onsen in southeastern Ibaraki lies in the historic water town of Itako, famous for its summer iris festival when girls in yukata pole-paddle traditional sappa-bune boats through the canal-laced wetlands. The springs serve a landscape of rice paddies and waterways at the mouth of the Tone river, where the gentle plains meet Lake Kasumigaura and the Pacific coast, in a region whose hina-doll festival traditions and waterside character set it apart from mountain onsen Japan.

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