Amakusa Shimoda Onsen Boyokaku
天草下田温泉 望洋閣あまくさしもだおんせん ぼうようかく
Indoor granite bath at a west-coast Amakusa ryokan with sunset views
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Bathing Arrangements
Shared bathing area for all genders
Policies & Services
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
On-site or nearby parking available
Views
SeaHighlights
UtaseyuAbout
Boyokaku sits on Amakusa's west coast where rooms face the East China Sea, and the sunsets here have earned a place on Japan's "100 best sunsets" list. The communal bath is indoors: a wide granite hall decorated with stained glass, with a sauna and an utaseyu (打たせ湯, a standing jet-waterfall) alongside the main soak. No outdoor bath. The spring is Shimoda Onsen, a government-designated national health resort spring known for its smooth, gentle water. Seven onsen-sommelier-certified staff are on hand to talk guests through the spring. The inn has been open since 1935.
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Last updated September 19, 2026