Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Echizen Onsen Rotenburo, including its Isaribi bath, is located in Echizen-cho, Fukui Prefecture. The sodium-chloride, thermal water emerges at 39°C, pH 7.3. The facility features an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Echizen Onsen 'Isaribi' (漁火 — 'fishing light') is a rotenburo perched above the Sea of Japan on the rugged Echizen coast; soak in the open-air bath while watching the lights of fishing boats at dusk. Fukui's Echizen-gani crab (available October–March) is Japan's most prized winter seafood — dinner and a soak here is a seasonal pilgrimage.