Onsen OniOnsen Oni

Search Onsen Oni

Search onsen, areas, prefectures and pages.

Oobuka onsen

大深温泉おおふかおんせん

Public BathhouseTemporarily Closed
Tohoku·Akita

Day Use

Yes

Typically closed for winter from mid-October to early May. Closed as of 2025; reopening date unknown.

¥500

500 yen for day-use bathing; 600 yen + bathing tax for up to 2 hours with ondol

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathNo

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

Capabilities

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

DiningNo

Restaurant or dining open to visitors (not just hotel meal plans)

WashingNo

Shower, wash stations, soap and shampoo provided

TowelsNo

Towels available to rent or borrow

ParkingYes

On-site or nearby parking available

Highlights

Ganbanyoku

About

A plain, no-frills bathhouse in the Hachimantai highlands of Akita. The spring is sulfur water, run fresh without recirculation, into separate indoor baths for men and women. There are no washing facilities or shampoo, so you come purely to soak. Two ondol (温床) heated-floor huts sit alongside for resting after your bath. The place has historically operated as a 湯治場 (yujiba), a slow-cure therapeutic stay spot, and is only open seasonally. As of 2025 it has been closed with no confirmed reopening date.

Loading map…

No reviews yet

Be the first to share your experience!

Onsen Oni

Last updated June 25, 2026