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Kosekiya (Annex)

古勢起屋別館

Lodging
Tohoku·Yamagata

Day Use

Yes
MonClosed
TueClosed
WedClosed
ThuClosed
FriClosed
Sat11:30–14:00
Sun11:30–14:00

Day-use bathing runs Saturdays and Sundays only, 11:30 to 14:00 (closed Monday through Friday). It resumed on May 16, 2026 after being suspended for several months.

¥1,000

Adult ¥1,000, child ¥700. Walk-in only, cash only, no reservation needed. A small towel is sold for ¥200; a bath towel rental is ¥300. Each of the men's and women's baths is capped at 6 bathers at a time, and there's no rest area.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathNo

Open-air outdoor bath

Only two indoor baths at the annex itself; guests can also use the outdoor baths at sister property Ginzanso free of charge.

Indoor BathYes

Enclosed indoor bathing area

Capabilities

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooNo

Allows entry with visible tattoos

TowelsYes

Towels available to rent or borrow

Bath towel rental ¥300; a separate small towel is sold (not rented) for ¥200.

Rest AreaNo

Relaxation space for after bathing

No rest area for day-use bathers.

ParkingYes

On-site or nearby parking available

Free dedicated parking for overnight guests; day-use bathers instead use the shared Ginzan Onsen public parking lot.

Views

River
Mountains

Highlights

Foot Bath

About

Kosekiya Annex has two indoor baths, Hokkori no Chika-yu and Nukkuri no Kintaro-yu, small rooms with an old-fashioned feel where the men's and women's sides swap through the day. The water comes straight from the spring and stays fresh, the kind that warms you through even after you've stepped out. There's no outdoor bath at the annex itself, but guests can use the rotenburo at the sister property Ginzanso for free, and a foot bath sits on the bridge by the entrance. The ryokan is an old wooden building on Ginzan Onsen's Taisho-era street, where gas lamps come on after dark and the river runs below. Rooms are simple, meals and the river view are part of the draw, and the retro streetscape is what most guests remember.

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Onsen Oni

Last updated August 5, 2026