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Hotel Kunitomi Annex

ホテル国富アネックス

Riverside hotel in Itoigawa with open-air bath and men's sauna

Lodging
Chubu·Niigata

Day Use

Yes
15:00–21:00

Last entry for day-use bathing and the sauna is 20:00. Overnight guests have different hours: the large bath is open 15:00 to 24:00 and 6:00 to 9:30 (cleaning from 9:30).

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Sauna room of any kind

Men only. There is no sauna for women.

Policies & Services

WashingYes

Shower, wash stations, soap and shampoo provided

ParkingYes

On-site or nearby parking available

Views

River

About

A hotel beside the Himekawa river in Itoigawa Onsen. The large bath has separate indoor and open-air baths for men and women, and the open-air bath looks out toward the river. The water is salty, smooth on the skin and has a slight mineral smell that bathers tend to either like or just notice. Men also get a Finnish-style sauna where you pour the water onto the stones yourself; there is no sauna for women. Day visitors can use the baths (higaeri nyuyoku, 日帰り入浴), and there is free parking. The building shows its age but is kept clean, and the feel is closer to a business hotel than a traditional ryokan.

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Onsen Oni

Last updated October 13, 2026