Tennen Onsen & Hot Yoga; Isahaya Moto no Yu
Isahaya, Nagasaki, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Isahaya, Nagasaki, 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 & Hot Yoga (Isahaya Moto no Yu), in Isahaya, Nagasaki, pairs sodium-chloride water at 41°C with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Isahaya Moto no Yu combines traditional hot spring bathing with hot yoga in a modern wellness complex serving Isahaya City beside the controversial Isahaya Bay reclamation where Japan largest tidal flat land reclamation project destroyed critical Ariake Sea marine habitat for decades before partial restoration was ordered by the Supreme Court. The city sits at the neck of the Shimabara Peninsula where the 1637 Shimabara Rebellion — the largest peasant uprising in Japanese history — began.
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.