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Kiyotsukan

清津峡湯元温泉 清津館きよつきょうゆもとおんせんきよつかん

Gorge-side ryokan at Kiyotsukyo with a private outdoor sulfur bath

Lodging
Chubu·Niigata

Day Use

No

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Private, reservation-only open-air bath by the gorge stream; for lodging guests only (no day-use bathing).

Indoor BathYes

Enclosed indoor bathing area

SaunaNo

Sauna room of any kind

Cold BathNo

Cold water plunge bath, typically used after sauna

Bathing Arrangements

Private BathYes

A private bath you can reserve for yourself or your group

The outdoor bath is private/reservable, booked at check-in; for lodging guests.

Room OnsenNo

Private onsen bath in guest rooms, for overnight guests only

Policies & Services

TattooYes

Allows entry with visible tattoos

KidsYes

Welcomes children and families

WashingYes

Shower, wash stations, soap and shampoo provided

ParkingYes

On-site or nearby parking available

薬師の湯

Yakushi-no-Yu Spring

Operated by · 有限会社清津館

黄
Sulfur
Color
almost colorless and clear
Taste
faintly sulfurous
Odor
weak hydrogen sulfide

Sodium Chloride spring

pH 9.1AlkalineHot source · 48°CSulfur-richHigh silicaTop-decile alkaline
Composition fingerprint0.7 g/kg dissolved · Hypotonic
Na⁺92
Cl⁻84
◀ CationsAnions ▶
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻
table-salt anion — coats the skin and holds heat in.
Known good for
  • Skin conditionsatopic skin, eczema
  • Circulationtired legs
  • Aches & jointsstiff shoulders
  • Sensitive-skin cautionbroken or dry skin

Yakushi-no-Yu — the name invokes Yakushi, the medicine buddha — is a simple sulfur spring. The water runs almost colorless and clear, yet carries the faint rotten-egg note of hydrogen sulfide and a trace of sulfur on the tongue. It is alkaline enough for the slippery beauty-water feel, and metasilicic acid is high enough to leave a thin silica film that makes skin feel smoother. Mineralization is light, so the bath stays gentle rather than heavy. The certificate's spring-type indications point squarely at stubborn skin conditions: atopic dermatitis, psoriasis vulgaris, chronic eczema and pyoderma.

Sampled at wellhead·Analyzed Sep 27, 2014·一般社団法人 県央研究所·Cert no. 県央温第D-286号

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River

Programs

About

Kiyotsukan sits right at Kiyotsukyo, a gorge in the Niigata mountains, and its baths lean into that setting. The indoor bath, Yakushi-no-yu (薬師の湯), is a simple sulfur spring with separate rooms for men and women, open to lodging guests at any hour. The outdoor bath sits over the gorge stream and is a private, reservation-only soak booked at check-in, drawing on two separate springs at different temperatures; in winter you can bathe in the falling snow. It's an 11-room ryokan that describes itself as unpretentious and no-frills, guests are welcomed at an irori hearth in the lobby before anything else. The bath's name has a story behind it: it's named for a Yakushi Nyorai statue tied to the Sengoku-era lord Uesugi Kenshin, and the innkeeper's family says they found the spring in 1968 after tracing a faint sulfur smell the statue seemed to point them toward. Kiyotsukan also belongs to Nihon Hitou wo Mamoru Kai (日本秘湯を守る会), an association of secluded hot-spring inns. There's no day-use bathing here, only overnight stays.

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5.0

2 reviews

from 1 reviewer

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Slava
3 months ago

Kiyotsukan, Niigata (pt1) The only ryokan in Kiyotsukyo Gorge, famous for the Tunnel of Light, an art installation that draws busloads of tourists from Tokyo. Meanwhile, the ryokan is one of the oldest, and is part of Hitou (hidden hot springs). Everything is traditional, and the staff are all Japanese. More than that, almost all of them are the family, the owners. Meals are served only at 18:00, again, traditionally. The rooms are clean, beautiful, spacious, and there are only 11 rooms in the whole ryokan. The interior is full of old artifacts, photos of visitors from the Imperial Family, and so on. Literally a 5-minute walk to the entrance of that art tunnel. Guests do not need a reservation, but they do need a ticket. That is a huge benefit, since you can manage to slip in before the crowds and take great photos. 100% recommended.

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Slava
3 months ago

Kiyotsukan, Niigata (pt2) Baths. In the ryokan building there is one indoor bath. It closes early, at 23:00. Hot, 42. There is a place to wash, there are hair dryers, and local drinking water. It smells of sulfur, and the water is clear. The outdoor bath is the reason people come here. A separate building right by the river. Reservations only for guests at check-in. Not by phone. The first reservation is free, the second is ¥300. Private bath by the river, with two baths from different (!) sources, one of them cool. 41 and 38. There is nowhere to wash, so you need to go to the indoor bath beforehand. A unique place in every sense.

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Slava
3 months ago

Kiyotsukan, Niigata (pt3) Food. Very tasty kaiseki with an emphasis on local mountain herbs and vegetables. Nothing luxurious, just tasty and varied, exactly as it should be. Naturally, divine Niigata rice. Service, like visiting your grandmother at her country house, they feed and take care of you wholeheartedly, and try to give you more rice.

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Last updated September 29, 2026