Hot Spring – Tokyo Somei Onsen

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