Happo Onsen

The only natural hydrogen spring in Japan – hot water of beauty and rejuvenation

Introduction of Hot Springs (Onsen)

This hot spring village is situated at the foot of Happoone in the western part of Hakuba Village in Nagano Prefecture.
In Happo hot spring village, the local food is highly recommended: some delicious dishes such as “onsen udon”, “onsen ramen” and “onsen eggs” are cooked with this hot spring water.
It is said that by using this hot spring water, the texture of the food becomes smoother and more al dente. Just try them!

Effects and characteristics of Hot Springs

The hot water is colorless and transparent. Its pH is more than 11, so it is strongly alkaline. This water is also called “hot water of beauty” because it removes old keratin and makes the skin smoother. In addition, this is the only spa in Japan which contains natural hydrogen. Hydrogen has antioxidative and anti-aging effects, so it is also considered as hot water of rejuvenation.
  • Spring Qualities

    Standard hot-spring
  • Efficacy

    Autonomic instability Depression Insomnia


Access by public transportation.

About 5 minutes from Hakuba station by bus for Hakuba-Happo-Sarukura(get off at Happo)

Access by car

About 60-minute drive from Nagano Interchange

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