Masaki Onsen
Tateyama, Chiba, Japan
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- Location
- Tateyama, Chiba, 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.
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Masaki Onsen is located in Tateyama, at the tip of the Bōsō Peninsula, Chiba Prefecture. The sodium-chloride water flows at 41°C, pH 7.3. An indoor bath, an outdoor rotenburo bath and a sauna are available.
Insider tip — Masaki Onsen sits at the southern tip of the Boso Peninsula in Tateyama City where the Pacific Ocean and Tokyo Bay meet at the entrance to one of Asia busiest shipping lanes. The Japan Maritime Self-Defense Force maintains a major air base at Tateyama, and the Nojimazaki lighthouse at the peninsula point offers panoramic views across the Kuroshio Current to the Izu Islands 50 kilometres offshore.
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.