厚木飯山温泉 元湯旅館あつぎいいやまおんせん もとゆりょかん
Open-air outdoor bath
Enclosed indoor bathing area
Uses natural hot spring water
Private bath available for day-use visitors or hotel guests to reserve
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Allows entry with visible tattoos
Guests with tattoos can use private room baths; policy for shared baths not explicitly stated
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
Towels available to rent or borrow
On-site or nearby parking available
Motoyu Ryokan has been welcoming guests since the late Edo period, when it served as a therapeutic bathing retreat. The spring flows clear and leaves skin unusually smooth, the kind of water that prompts people to compare it to a toner. Outdoors, there are two open-air baths beside the Koayu River: a riverside rotenburo framed by the Higashi-Tanzawa hills, and a separate utaseyu (打たせ湯) waterfall bath. Indoor baths rotate between men and women morning and evening, a private rental bath is available by reservation, and some rooms have their own open-air tubs. The main bathhouse is decorated with a collection of tanuki figurines, a nod to the legend that a raccoon dog discovered the spring.
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Last updated June 25, 2026