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Mozumo

もずももずも

Adults-only ryokan in Hirayu with private rotenburo in every room

Lodging

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathNo

Enclosed indoor bathing area

Bathing Arrangements

Private BathNo

A private bath you can reserve for yourself or your group

Room OnsenYes

Private onsen bath in guest rooms, for overnight guests only

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

KidsNo

Welcomes children and families

DiningYes

A restaurant or dining room open to visitors, not only meals for overnight guests

ParkingYes

On-site or nearby parking available

Views

Forest

Highlights

Drinking Spring

About

Mozumo is an adults-only ryokan in Hirayu Onsen where every room comes with a private open-air bath. There is no indoor bath; the whole experience is outdoor soaking, either from your own room or in the shared rotenburo (separate for men and women). The water comes from the inn's own spring, Yamanoyu (山の湯), piped in fresh and unrecirculated (kakenagashi). It is smooth on the skin and approved for drinking.

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Onsen Oni

Last updated September 19, 2026