TM Onsen
Tarumizu, Kagoshima, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Tarumizu, Kagoshima, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 40 °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
TM Onsen is located in Tarumizu, Kagoshima Prefecture, on the edge of Kinko Bay. Sodium-chloride thermal water emerges here at 40°C. Indoor bath, outdoor bath (rotenburo) and sauna are on offer.
Insider tip — 'TM Onsen' in Tarumizu city, perched on the eastern shore of Kinkowan Bay directly facing Sakurajima across the water. The daily Tarumizu-Kagoshima ferry offers one of Japan's most dramatic short sea crossings — Sakurajima's active cone looming above as passengers cross the caldera lake. The volcanic proximity guarantees rich thermal waters throughout Tarumizu's lowlands, warmed by magma systems only kilometres below.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal & sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.