HotelMikawaKaiyokaku

An inn with an observation open-air bath overlooking Mikawa Bay and a tiny sauna wrapped in the scent of wood

Aichi Gamagori City

"Hotel Mikawa Kaiyokaku" is a hot spring hotel in Gamagori City, Aichi Prefecture. Perched on a hill overlooking Mikawa Bay, every guest room offers an ocean view. The large bath features an open-air observation bath with views of Mikawa Bay, the mountains of the Atsumi Peninsula, and beautiful sunrises and sunsets. You can fully enjoy the natural hot spring known as Bihaisen, famous for its skin-beautifying effects. After warming up thoroughly in the compact dry sauna with the scent of wood, you can refresh with an outdoor bath while feeling the pleasant sea breeze in the open-air area.

Hot Spring & Bath Information

Miya Onsen Bihaisen

TypeNatural Hot Spring

A natural hot spring of simple alkaline water called Bihaisen. Its mildly viscous, soft texture is its defining feature, and it is cherished as a skin-beautifying bath that leaves the skin smooth. After bathing, your skin feels silky, and your body is gently warmed from the core, helping you stay warm longer. From the observation open-air bath, you can enjoy a breathtaking blue panorama of Mikawa Bay with nothing to obstruct the view, as well as the scenic mountains of the Atsumi Peninsula.

Sauna

Dry Sauna

95°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity3people

Men'sWomen's

A very small dry sauna attached to the large bath. The well-used texture of the wood and the faint, gentle scent of wood create a calm atmosphere. The benches are compact and suited to use by small groups, allowing for a meditative sauna experience where you can quietly face yourself. The perceived temperature is high, and it draws out a thorough sweat.

Business Hours

Monday
15:00〜00:00
06:00〜09:30
Tuesday
15:00〜00:00
06:00〜09:30
Wednesday
15:00〜00:00
06:00〜09:30
Thursday
15:00〜00:00
06:00〜09:30
Friday
15:00〜00:00
06:00〜09:30
Saturday
15:00〜00:00
06:00〜09:30
Sunday
15:00〜00:00
06:00〜09:30
Holiday
15:00〜00:00
06:00〜09:30
💡 [Day-use bathing] 7:00 AM to 9:30 AM (last entry 8:30 AM), Thursday to Tuesday 11:00 AM to 9:00 PM (last entry 8:00 PM), Wednesday 3:00 PM to 9:00 PM (last entry 8:00 PM)

Closed Days: None

Address

1-69 Minamiyama, Mita-cho, Gamagori City, Aichi Prefecture 443-0021

Hotel & Ryokan

Gender Access

Gender Separated

Tattoo Policy
Unknown (Please Check)
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