Funabashi Onsen; Yuraku no Sato
Funabashi, Chiba, Japan
- Location
- Funabashi, Chiba, Japan
- Water type
- sodium chloride, thermal
- 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
In Funabashi, Chiba Prefecture, Funabashi Onsen Yuraku no Sato draws sodium-chloride water heated to 41°C. The facility offers an indoor bath, an outdoor rotenburo and a sauna for local visitors.
Insider tip — Funabashi was historically one of the largest fishing ports on Tokyo Bay — the name means 'boat bridge,' referencing the wooden pontoon bridges that once crossed the bay here. The city now forms part of the dense commuter belt east of Tokyo, but Yuraku no Sato's dark artesian black water (kuro-yu) draws from the same ancient Miocene sea deposits that underlie all of eastern Chiba. A local institution where Funabashi commuters decompress after the long Tokyo train journey.
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 & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.