Tennen Onsen; Thermae Yu
Shibuya, Tokyo, Japan
- Location
- Shibuya, Tokyo, 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
Tennen Onsen, Thermae Yu, is an urban onsen located in Shibuya, Tokyo, Japan. Its natural sodium-chloride water reaches 41°C, filling an indoor bath, an outdoor rotenburo and a sauna, right in the heart of the capital.
Insider tip — Tennen Onsen Thermae Yu is one of Tokyo's celebrated urban onsen, drawing genuine natural thermal water from deep beneath the Shibuya cityscape. The dark, sodium-chloride-rich water known as kuro-yu (black water) is distinctive and intensely warming. Open until 9 AM the following morning, it is a lifeline for night owls and jet-lagged travellers. The rooftop open-air bath offers a surreal contrast of hot springs and the glowing Tokyo skyline.
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 (idéal automne-hiver).