Grouped by official usage disclosure

Hakone 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 this area

About Hakone Onsen

Easily accessible from Tokyo, Hakone Onsen is one of Japan's most renowned hot spring areas. Known for its "20 hot springs," it boasts a remarkable variety of spring qualities, offering a new experience with every visit. Immerse yourself in its rich nature and embark on a journey of balneotherapy for deep relaxation and rejuvenation.

Read the Hakone Onsen column
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Filter stays in Hakone

On this page you can filter Hakone inns on the spot — by whether the water is diluted, heated, recirculated, or disinfected, and by spring type (with indication guides).

Listings are organized from official documents submitted by users — composition from the official onsen analysis, water handling from the official usage disclosure. Posting dates aren't collected yet, so no dates are shown.

Information may change. Please confirm the latest details with the facility.