Umisato Hotel
房総白浜ウミサトホテル
Seaside hotel bath fed by its own hot-spring source
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
On-site or nearby parking available
About
This hotel sits right on the Shirahama coast at the southern tip of the Boso Peninsula, with the Pacific in view from the guest rooms. Its indoor bath draws from the hotel's own source, Shirahama Motoyu Onsen, a salty spring that leaves the skin feeling slick and keeps you warm well after you get out. There is no rotenburo or sauna, and the men's and women's baths swap at set times, so check the schedule before you go down.
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Last updated September 29, 2026