Spring Quality
Sodium – Chloride Strong Saline Hot Spring
(Hypertonic / Mildly Alkaline / High Temperature)

Hot Spring Baths You Can Enjoy
In our indoor cypress bath, you can enjoy nuru-yu—a gently warm hot spring bath.
The Benefits of Nuru-yu (Warm Bathing)
Soaking slowly in lukewarm water is said to stimulate the parasympathetic nervous system,
promoting deep relaxation, better sleep, improved appetite, and enhanced immune function.
Open-Air Bath
Enjoy the hidden amber-colored spring as you gaze up at the open sky.
Source Name: Tokyo Somei Onsen
Type of Spring: Iodine-containing Sodium – Chloride Strong Saline Hot Spring
(Hypertonic / Mildly Alkaline / High Temperature)
Spring Temperature: 46.6°C
Discharge Rate: 56 liters per minute (mechanically pumped)
Stadium Sauna

Cold Bath

Relaxation Space
