Teradomari Misaki Onsen
Nagaoka, Niigata Prefecture, Japan
- Location
- Nagaoka, Niigata Prefecture, 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
Teradomari Misaki Onsen rises beside the windswept cape of Teradomari on Niigata's Sea of Japan coastline, where iodine-rich thermal waters have long drawn visitors seeking the restorative power of mineral bathing with sweeping ocean views. The iodine content—characteristic of springs near coastal sedimentary geology—is valued in Japanese bathing tradition for its antibacterial and skin-conditioning properties. A refreshing sea breeze accompanies the thermal soak, combining two of nature's most revitalizing forces in a single coastal escape.
Insider tip — Teradomari Misaki Onsen stands on a promontory jutting into the Sea of Japan, where iodine-rich saline waters and ocean panoramas create a compelling combination. The mineral concentration is among the highest in Niigata, lending the water a characteristic amber tint and a warming effect that counters the region's famously cold winters. The adjacent fish market at Teradomari port supplies the inn restaurants with morning-fresh seafood.
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 (idéal automne-hiver).