Day Use
YesDay-use bathing runs on an irregular schedule, closed days are posted on the official site's monthly calendar rather than a fixed weekly day off. Reception closes at 14:30 (last entry) and day-use guests must leave by 15:00.
Children (age 3 through elementary school) pay 1,000 yen. The price includes a face towel and a rental bathing garment, yuamigi (湯浴み着), which is required for the mixed-gender outdoor baths.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Bathing Arrangements
Private bath available for day-use visitors or hotel guests to reserve
The reservation-free private bath 'Okuno-yu' (奥の湯) is reserved for overnight guests only; the day-use page states day-trip visitors cannot use it.
Private onsen bath in guest rooms, for overnight guests only
Stated for several room types (e.g. the 特別室, 二間続き和洋室, 和室12畳ツインベッド, 12畳和室) that each have their own hinoki-wood in-room bath supplied with onsen water; a couple of room types instead have a shower booth only.
Shared bathing area for all genders
A bathing garment (yuami-gi, 湯浴み着) or swimsuit is required for mixed bathing.
Policies & Services
Allows entry with visible tattoos
Welcomes children and families
Shower, wash stations, soap and shampoo provided
Same reviewer also reported shampoo and body soap provided (シャンプーやボディーソープも悪くない); no official-site statement on washing stations was found.
Towels available to rent or borrow
A face towel and a rental bathing garment (yuamigi, needed for the mixed baths) are bundled into the day-use admission price, not a separate rental fee.
On-site or nearby parking available
Views
MountainsHighlights
Drinking Spring
Lukewarm Bath
Foot BathPrograms
About
Omaru Onsen Ryokan's signature feature is its mixed outdoor bath where the flowing river is itself the hot spring, the stream running through the property is natural onsen water, giving the rotenburo (露天風呂) an unusually open, river-crossing feel. Bath robes are provided for mixed bathing.
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Last updated July 22, 2026