Hanatachi Onsen; Robatakan
Jōetsu, Niigata, Japan
- Location
- Jōetsu, Niigata, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
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
Hanatachi Onsen / Robatakan, in Jōetsu, Niigata Prefecture, offers sodium-chloride water at 41°C. An indoor bath, an outdoor rotenburo, and a sauna make up this bathhouse along the Sea of Japan coast.
Insider tip — Robatakan, the fireside hearth hall, evokes the irori-centered hospitality of the Sea of Japan coast where Uesugi Kenshin, the Buddhist warrior-daimyo, ruled from his castle at Kasugayama above Jōetsu. Kenshin legendary battles against Takeda Shingen at Kawanakajima and his reputation for sending salt to his enemies during sieges define the noble tradition of this Niigata coastal castle city.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.