Bosenkaku

This quiet hotel is surrounded by rivers and mountains, including the magnificent Agano River and popular hiking spot Mt. Sugana. Guests can enjoy a great view of natural beauty throughout the seasons from the large public baths and the open-air baths on the sixth floor.

Bath Information
Magical 3-color hot springs (Sakihana Onsen)
Sakihana Onsen is a mysterious hot spring due to its different colored waters which change depending on temperature and other factors.
This hotel is the only location in the prefecture to succeed in creating a bathing area with baths of 3 different colors all at the same time.
3 skin-beautifying effects:
Weak alkalinity, sulphurous spring water and sulphates are all available at this hotel's hot spring baths (3 of 4 skin-beautifying elements). Enjoy skin care salt packs as well!
100% Natural Spring Water
The large communal baths use 100% natural water as is from the source from spring to autumn, and the open-air baths use this water year-round.