Marutaya Onsen; Saiho no Yu
Ōita, Oita, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Ōita, Oita, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 42 °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
Marutaya Onsen (Saiho no Yu) is located in Ōita City, Oita Prefecture, on the island of Kyushu, Japan — a region famous for its hot springs. Its sodium-chloride thermal water runs hot, around 42°C, with an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Saiho no Yu' (western paradise spring) at Marutaya Onsen — a reference to Amida Buddha's Western Pure Land. In the heartland of Japan's hot spring culture, Oita city's neighbourhood baths carry spiritual as well as physical wellness traditions. The marutaya (丸屋 = round house) suggests a distinctive architecture.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °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.