Hakone Airu
箱根藍瑠はこねあいる
All-rotenburo ryokan with private in-room baths and Hakone mountain views
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Bathing Arrangements
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Policies & Services
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
Views
MountainsAbout
Every room at Hakone Airu has its own open-air bath fed by the natural spring, so you can soak while looking out at the Hakone mountain range. There is also a shared outdoor communal bath, run as kakenagashi (fresh-flowing, unchlorinated spring water), with separate sections for men and women. There is no indoor bath at all, large or small. The inn has a Balinese feel to its design rather than the typical austere ryokan aesthetic.
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Last updated September 19, 2026