湯田中温泉 よろづや
Bon runs five 120-minute day-use slots per day; advance reservation is required.
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Private bath available for day-use visitors or hotel guests to reserve
Private reservable bath is inside the paid private SPA "Bon" (sauna + private onsen bath), not the main baths.
Shared bathing area for all genders
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
Dining rooms (蓬莱, 泰山の間) are for lodging guests' included meals, not open to outside visitors.
Shower, wash stations, soap and shampoo provided
On-site or nearby parking available
Yoroduya is a 28-room ryokan in Yudanaka onsen, built around two separate bathhouses that alternate between men's and women's use through the day: Momoyama-buro (桃山風呂), a garden bath registered as a cultural property, and Shinonome-buro (東雲風呂), the other bathhouse. The water is salty and feels smooth on the skin. General bathing here is for overnight guests only. Day visitors can instead book Bon, a separate paid spa with two styles of sauna (loyly and steam), a cold bath, and a private onsen bath, in timed slots. The building has a wood-built, temple-like exterior and a tall, open lobby, giving it an old-fashioned ryokan feel throughout.
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Last updated August 5, 2026