Hoshi OnsenFor those who want to soak in water straight from the source
Is the bath water straight from the source, or recirculated, diluted, or heated? We group stays by how the water is actually used, based on official usage disclosures and spring analyses.
About Hoshi Onsen
Nestled in the mountains of Gunma, Hoshi Onsen is famed for the historic Chojukan inn, a registered tangible cultural property. Here you can experience a rare onsen where spring water wells up directly from the floor of the bath. The lukewarm sulfate spring provides a restorative warmth, inviting deep relaxation. Discover the historic spa culture with your Onsen Wellness Journal.
Read the Hoshi Onsen columnFilter stays in Hoshi
On this page you can filter Hoshi inns on the spot — by whether the water is diluted, heated, recirculated, or disinfected, and by spring type (with indication guides).
