Hotel Ryugu-no-yado
おもてなし処 龍宮之宿おもてなしどころ りゅうぐうのやど
A seaside hotel near Cape Irako with a mineral-additive bath
Day Use
YesClosure days change from month to month; check the official site for the current schedule. Day-use bathing runs in two windows, 11:00-15:00 and 18:00-21:00, since the mid-afternoon slot (15:00-18:00) is kept for overnight guests only.
Adult 800 yen, elementary school age 500 yen, infant 300 yen. Tax included, per person, bath towel not included (rental available for 200 yen).
Bathing & Water
Heated tap water, not a natural hot spring
The site itself labels the bath a jinko (artificial) onsen using a 光明石 mineral additive stone in the tub water, with a quasi-drug (医薬部外品) approval number - not natural spring-source water.
Open-air outdoor bath
Bath layout is described only as an indoor bath (内湯) for both men's and women's baths; no outdoor bath mentioned anywhere on the site.
Enclosed indoor bathing area
Bathing Arrangements
Shared bathing area for all genders
Policies & Services
Welcomes children and families
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
Small towel (200 yen) is sold, but the bath towel is explicitly labeled rental (レンタル) for day-use bathers.
On-site or nearby parking available
Views
SeaPrograms
About
Ryugu-no-yado is a plain, homey hotel by the Irako ferry terminal on Aichi's Atsumi Peninsula, with rooms that look out over Mikawa Bay. The single indoor bath isn't fed by a natural spring; it runs on a mineral additive called Komyoseki (光明石), though the facility markets it under the onsen name. Day-use bathing runs in two windows worked around the hours kept for overnight guests, and the hotel has its own restaurant.
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Last updated October 7, 2026