Fumoto Ryokan

Eleven free private baths you simply walk into, every tub 100% free-flowing, and the family who invented Kurokawa's bath-hopping pass — great water and big country dinners, with a lot of stairs

Fumoto has been run by the Matsuzaki family since 1955, and the current owners are credited with inventing Kurokawa's famous nyūtō tegata bath-hopping pass in 1986. It's small — 14 rooms in an old all-wooden main building and the Fumotoan annex across the lane — and its pride is the bathing: water from the inn's own 300-metre well, a sodium-calcium bicarbonate-sulphate-chloride spring at 60.5°C with a faint sulphur smell, that the inn says is 100% free-flowing in every bath with no added water, heating, recirculation or disinfection. Besides gender-separated riverside and bamboo-grove open-air baths, there are eleven private baths — indoor and outdoor, cypress, hollowed stone, rock and a 150cm-deep standing bath — all free with no booking: you just flip the wooden tag to 'in use'. Japanese guests rate it 4.6 across 958 reviews on one major site, with the baths and dinner at 4.7. Dinner is 'countryside auntie cooking' planned by the okami — horse sashimi, Higo or Aso red beef grilled on a hoe-shaped plate, house-made konnyaku — and portions are huge. The complaints: stairs and slopes everywhere, the annex has no front desk and its guests cross the road and climb steep steps to eat, street-side rooms are noisy, the building shows its age, a few baths were half-full or lukewarm early in the morning, and some 2026 guests found service rushed. Most 2026 guests paid about ¥21,000–30,000 per person with two meals.