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Tochigi Nikko City

Kinugawa Onsen Asaya

A long-established inn highlighted by Kinugawa's premier sky garden open-air bath and a newly added auto-löyly sauna

  • Kinugawa Onsen
  • Scenic View
  • Onsen Ryokan
  • Reserved onsen available
  • Natural Hot Spring
  • Free-flow from source
  • Auto löyly available
  • Finnish sauna

About Kinugawa Onsen Asaya

Kinugawa Onsen Asaya is a long-established hot spring ryokan in Nikkō, Tochigi Prefecture, with a history of over 130 years. It draws generously from its own private spring, Kodakara no Yu, and the open-air bath in the sky garden on the 13th floor of Shuho-kan offers a breathtaking view of the mountains along the Kinugawa River and a sky full of stars. The property features a well-rounded bathing area, including the auto-löyly sauna newly added in 2025, as well as a Finland sauna and a nano mist sauna. It also offers private baths that feel like exclusive rooms, along with guest rooms with hot spring baths, allowing guests to enjoy a luxurious private onsen experience.

Hot SpringONSEN

Large Bath, Asaya Source

The private source, Asaya Spring (Kodakara no Yu), can be enjoyed in the large baths of Shuho-kan and Hachiban-kan. Its gentle feel on the skin comes from an alkaline simple hot spring that wraps the body softly. Long known as a famous spring associated with the saying, "Brought by burns, lost by injury, healed in Kawaji," it is expected to be especially effective for fatigue recovery, beautiful skin, and improving poor circulation. In the spacious tubs, you can luxuriate in the historical hot spring of Kinugawa and fully savor a truly indulgent time.

Sky Garden Open-Air Bath, Shoryu no Yu

Located on the 13th floor of Shuho-kan, this is the highest open-air bath in Kinugawa Onsen. While soaking in the private spring, you can gaze out at the mountains of Kinugawa spreading before you, the clear sky, and at night, a sky full of stars. In an overwhelming sense of openness, you can feel the breeze and be soothed by a famous hot spring, making for a supreme bathing experience that can only be enjoyed here.

Free-flow from source

Guest Room Open-Air Bath

At Asaya Hotel, the in-room observation baths and open-air baths are also fed by the property’s own hot spring source. The guest room baths are luxurious free-flowing source baths, allowing you to have the fresh, famous water all to yourself whenever you like in a private space. This is an exquisite private spa where you can enjoy the hot spring to your heart’s content without interruption, while taking in the beauty of the Kinugawa valley and the pleasant breeze.

SaunaSAUNA

01SAUNA

Auto-löyly Sauna

Men'sWomen's

An auto-löyly sauna newly installed in the Shuho-kan large bath area. Water is automatically poured at regular intervals, filling the room with pleasant heat and steam. In a clean, wood-scented space, you can sweat out your tension at a relaxed pace. Heat circulates well, the perceived temperature is high, and you can enjoy a thoroughly warming experience from the core.

02SAUNA

Finland Sauna

Men'sWomen's

A dry sauna that uses a traditional far-infrared stove. Its defining feature is strong, dry heat that promotes vigorous sweating. In a calm atmosphere, you can spend time quietly with yourself. Recommended for anyone who likes a hot sauna, it offers a powerful heat experience.

03SAUNA

Nano Mist Sauna

Women's

A nano mist sauna fully equipped in the women’s large bath area of Hachiban-kan. Ultra-fine mist gently wraps around the skin, allowing you to warm up gradually from the core without feeling stifled. It is expected to have strong moisturizing effects and leaves the skin smooth after bathing, creating a relaxing space that women will appreciate.

Cold BathCOLD BATH

01COLD BATH

Cold Bath

Men'sWomen's

A cold plunge bath attached to the Shuho-kan large bath area. It uses tap water and is gentle on the skin, with a moderate temperature that is not too cold, so you can stay in it comfortably for a long time. It gently cools your body after the sauna and helps you refresh without strain. Toning chairs are also provided beside the tub.

Facility Information

Address
〒321-2526 Tochigi Prefecture, Nikkō, Kinugawaonsen Taki 813
Business Hours
Monday15:00〜00:00/05:00〜10:00
Tuesday15:00〜00:00/05:00〜10:00
Wednesday15:00〜00:00/05:00〜10:00
Thursday15:00〜00:00/05:00〜10:00
Friday15:00〜00:00/05:00〜10:00
Saturday15:00〜00:00/05:00〜10:00
Sunday15:00〜00:00/05:00〜10:00
Holiday10:00〜23:00

大浴場により営業時間が異なります（秀峰館 12:00〜翌10:00、八番館 14:00〜翌12:00、空中庭園露天風呂 14:00〜24:00/5:00〜10:00）。サウナ利用時間は14:00〜23:00、5:00〜9:00。日帰り入浴は現在営業しておりません。

Closed Days
Irregular Holidays
Gender Access
Gender Separated
Tattoo Policy (Communal Bath)
No Tattoos
Official Website
View official site

Access

View official site

JAPAN ONSEN COLLECTION

When your heart unwinds,

The Finest Moment

A journey through 52 renowned hot springs and saunasJAPAN ONSEN & SAUNA GUIDE

Japan's Finest Onsen & Sauna

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52

A curator who has visited over 300 facilities nationwide handpicks 52 exceptional ones they wholeheartedly recommend. The only guidebook that deeply explores the allure of onsen and sauna—plus culture and etiquette.

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◆
JAPAN ONSEN COLLECTION
JAPAN ONSEN COLLECTIONJapan's Finest Onsen & Sauna
A journey through 52 renowned hot springs and saunasJAPAN ONSEN & SAUNA GUIDE

Japan's Finest Onsen & Sauna

52 Extraordinary Destinations

A curator who has visited over 300 facilities nationwide handpicks 52 exceptional ones they wholeheartedly recommend. The only guidebook that deeply explores the allure of onsen and sauna—plus culture and etiquette.

300+Facilities
Visited
Read a free previewJAPAN ONSEN & SAUNA GUIDE