Free-flow from source
Funabashi Onsen
An amber-colored sodium-chloride strong brine hot spring gushing from 1,500 m underground. It is a highly saline, hypertonic spring with very rich mineral content, and is beloved as the "bath of warmth" for its excellent heat-retention and moisturizing effects. In the open-air bath "Uenoyu," you can enjoy free-flowing source water and feel the power of the fresh spring water on your skin. After bathing, your body stays warm for a long time, gently soothing fatigue from the roots up.