Fujiya
藤屋
Fujiya publishes no policy for a shared bath because it doesn't run one for guests: the inn's only bathing option beyond the room is a reservable private bath, a cypress tub filled from Fujiya's own hot-spring source — the only inn in Iwamuro Onsen with its own source water, by its own account.
大切な方と気兼ねなく湯浴みをお楽しみいただける貸切風呂です。浴槽は檜の浴槽、自家源泉をお楽しみいただけます。
Best for: A private cypress-tub bath on the inn's own hot-spring source, the only one in Iwamuro
¥2,200 for 45 minutes, booked at the front desk, open 15:30–22:00.