Kokuminshukusha (National lodging facility) Furuiwaya inn
国民宿舎 古岩屋荘
Natural-rock indoor onsen bath near Iwaya-ji temple
Day Use
YesIn winter (January 1 to February 28), day-use bathing hours shift to 15:00-20:00 instead of the usual 12:00-20:00; last entry is 19:30 year-round. Snow can force a temporary winter closure, so it's worth calling ahead to confirm.
The adult rate applies from junior-high age up; children under 3 bathe free. An 11-visit ticket book costs 5,000 yen, and Kumakogen town residents get a discount.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Bathing Arrangements
Private onsen bath in guest rooms, for overnight guests only
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
The restaurant serves lunch and dinner on Saturdays, Sundays and public holidays only; weekdays are reserved groups only.
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
Face towels are sold at the front desk for 150 yen, not lent out; there is no rental option.
Views
MountainsAbout
Furuiwaya-so is a kokuminshukusha (国民宿舎), a small municipal lodging house deep in the Kumakogen mountains. Its single bath, split into men's and women's sides, is built from natural rock rather than tile, and it's indoor only, no rotenburo and no sauna. Step out after soaking and you're looking straight at the jagged rock outcrops the valley, and the inn itself, are named for. Local tradition holds that the spring has flowed since the Yoshino-cho era, in the fourteenth century, and it's long been valued as water that's good for the skin. Walking pilgrims on the Shikoku 88-temple route often stop here, since Iwaya-ji (岩屋寺), one of the temples, is just up the road.
Loading map…
No reviews yet
Be the first to share your experience!
Last updated September 29, 2026