Takayu Onsen Adachiya
高湯温泉 安達屋
Area photo — not the ryokan itself · Takayu Onsen in winter, Fukushima · Purplepumpkins / Public domain
A 1607 inn with milky, acidic sulphur water flowing through every bath, irori-grilled dinners and free drinks in the lounge — its famous mixed open-air bath has now been split into men's and women's sides
Adachiya has stood at Takayu, one of the old 'three Takayu of Ōshū', since 1607. Its water comes from the inn's own sources: an acidic sulphur spring (about pH 2.7), milky and strongly scented, and the inn calls itself the prefecture's top free-flowing bath — no added water, heating or recirculation. The long open-air bath, Taiki-no-yu, was famous as a wild mixed bath with women-only evening hours; after a 2024–25 renovation it was split into east and west halves, each joined to a new indoor bath, which swap between men and women overnight. Two wooden-hut open-air private baths and an indoor private bath are free by reservation. Japanese guests rate it 4.8 across 1,304 reviews on one major site (with the bath at 5.0) and 4.70 on another. Dinner is a course served at your own charcoal irori, where you grill local fish, Date chicken and Kawamata shamo yourself, with sommelier-chosen sake in Riedel glasses, and the two lounges now serve drinks free from afternoon to 22:00. The catches: a wooden building with thin walls, stairs everywhere and no lift, no private baths in any room, guests under junior-high age not accepted, some lovers of the old mixed bath who miss its wildness, baths that can run very hot, cloudy water that hides steps, and stink bugs in season. Standard dinner-and-breakfast plans run about ¥26,850–41,850 per person.
Room Selection Guide
What the guests who stayed here actually recommendRecommended
Deluxe (opened May 2024) and Comfort Twin (opened June 2024)
The newest rooms: the 46㎡ Deluxe with a separate bedroom and two semi-double beds ('cleanly renovated', an August 2026 guest wrote) and the 30㎡ Comfort Twin with a view over Fukushima city — an October 2025 blogger found the end-of-corridor Watasuge spacious. No room has its own bath; all have a toilet and basin.
Superior Japanese-style rooms
A living room plus bedroom for up to four — retro but clean with new fittings, one 2024 blogger found — though a 2026 guest noted a small washbasin area. Superior plans run about ¥33,350–39,350 per person with two meals.
Request To Avoid
The 8-mat Standard rooms, upper floors, and forest-side rooms in summer
The cheapest rooms felt small with hard beds to one 2024 guest; walls are thin enough to hear neighbours' footsteps and doors; stairs everywhere and a maze-like layout made a third-floor room hard to reach with a cane; and forest-side rooms hear motorbikes on the Skyline road from early morning in summer. From February 2027 the room types are being renamed (Standard becomes Economy).
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Dining Deep Dive
Breakfast Consensus
4.2/5A set breakfast by the irori, with a choice of rice or okayu — one 2026 guest missed the bread and drinks of the old lounge breakfast
Book the free wooden-hut private baths (Yakushi-no-yu, 50 minutes) at the front desk as soon as you arrive — slots fill by evening — or use them without booking from 22:00 to midnight and before 6:45. Baths close 11:00–14:00 on Tuesdays and Fridays for cleaning.
Dinner Insights
4.2/5Every table in the private and semi-private dining rooms has a charcoal irori: you grill herring, satoimo, iwana, Date chicken and Kawamata shamo while the kitchen sends out the rest of the course, ending with a wagyu fillet and a miso hotpot; drinks are chosen by a sommelier and sake specialist. Fans love the ritual; critics found it hot in summer, the seasoning too light, the low-temperature beef mushy or the main meat cold, and the number of dishes small. Older reviews also mention smoke at the irori.
Onsen & Wellness Realities
An acidic sulphur spring (calcium-aluminium sulphate type, about 43.7°C and pH 2.7) from the inn's own sources, milky white and free-flowing in every bath with no added water, heating or recirculation.
Since the 2024–25 renovation the indoor baths Higashi-no-yu and Nishi-no-yu each open onto their own half of the long Taiki-no-yu open-air bath, and swap between men and women overnight (15:00–24:00 and 5:00–11:00); it's no longer mixed. Two wooden-hut open-air private baths (Yakushi-no-yu) and the small indoor Himesayuri are free by reservation. Guests warn the cloudy water hides steps, and that the baths can be very hot. Day visitors bathe 10:30–14:30 (¥1,500).
No policy found on the official site or Japanese booking sites — contact the inn. The private baths avoid sharing.
Local Warnings & Nuances
- 01
No children of primary-school age or younger.
- 02
Check-in 15:00 (last 18:00), check-out 11:00.
- 03
Getting there: about 30 minutes by taxi or 40 minutes by Fukushima Kōtsū bus from Fukushima Station's west exit; a shuttle mentioned in older reviews isn't on the official site — ask. In winter only the Skyline beyond Takayu closes; the road up from Fukushima stays open, though it can be snowy.
- 04
Wooden building with stairs only and no lift; sound carries.
- 05
The two lounges serve tea and, from 15:00 to 22:00, drinks that recent guests say are free (some whiskies extra). Stink bugs appear in some seasons.
Sources
The real blog posts and stay reports this article draws on
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Photo credits: Hiiragiya — the frontage on Anekoji-dori, Kyoto · Mariemon / CC BY 3.0 / Mukaitaki in the snow, Higashiyama Onsen, Aizu-Wakamatsu · Fumihiko Ueno / CC BY 3.0 / Mikiya — the wooden main building, Kinosaki · Ippukucho / CC BY 3.0
Takayu Onsen Adachiya
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