Numadate Onsen Kaikan Numadate no Yukko
Kazuno, Akita, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Kazuno, Akita, Japan
- Water type
- iron-rich
- Temperature
- 42 °C
- pH
- 6.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Numadate Onsen Kaikan, locally known as Numadate no Yukko, is located in Kazuno, Akita Prefecture. Its iron-rich water reaches 42°C (pH 6.3) and fills an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Numadate Onsen Kaikan Numadate no Yukko is a public bath complex in Kazuno City, Akita, sitting in a landscape shaped by marshland and volcanic highland that gives the spring its ferruginous character. The amber iron-rich water at 42°C is celebrated locally for warming the body deeply and improving circulation during the punishing Tohoku winters. Guests are greeted by the warm ochre glow of the pool water, a visual guarantee of high mineral content. The facility operates as a community meeting point, with a rest room where regulars gather for tea and conversation after their soak.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features iron-rich water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).