Tsukuba Onsen Kirakuri Bettei
Tsukuba, Ibaraki, Japan
- Location
- Tsukuba, Ibaraki, 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
Tsukuba Onsen Kirakuri Bettei stands at the foot of Mount Tsukuba, Ibaraki prefecture. Its sodium-chloride water surfaces at 41°C with a pH of 7.3, alongside an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Tsukuba Science City, home to over 300 research institutes and the JAXA space centre, provides a uniquely intellectual backdrop for this sparkling spring resort. Mount Tsukuba, the sacred twin-peaked mountain beloved by poets since antiquity, looms over the spa and rewards an easy sunrise climb.
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.