湯の澤鉱泉
湯の澤鉱泉ゆのさわこうせん
Alternating rock and cypress baths at a secluded Okukuji ryokan
Day Use
YesAdults ¥1,000 / Children ¥300
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
official site does not mention a sauna at all; a third-party listing states none explicitly
Bathing Arrangements
A private bath you can reserve for yourself or your group
Private onsen bath in guest rooms, for overnight guests only
itemized room-equipment list has no bath fixture; guests use the two shared 大浴場 instead
Shared bathing area for all genders
Policies & Services
Welcomes children and families
published child day-use price implies children are welcome; no separate age policy stated
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
On-site or nearby parking available
Views
ForestHighlights
Lukewarm BathPrograms
About
Two indoor baths, one lined with cypress (hinoki) wood and one built from rock, rotate between men and women throughout the day, so overnight guests can use both. The water is soft on the skin and has a gentle carbonated quality that makes long soaks easy. The cypress bath was renovated in early 2026 and now has a clean hinoki scent. The spring has been flowing since the Tenpo era (天保, early 1800s). Set on a large wooded plot in Ibaraki's Okuji area, this small ryokan is the only one in the prefecture to belong to the Nihon Hitoyu wo Mamoru Kai (日本秘湯を守る会), the society dedicated to preserving lesser-known hot springs across Japan.
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Last updated September 22, 2026