MurasugiOnsenFuganoYadoChouseikan

A hot spring inn where you can enjoy a 1,000-tsubo open-air bath and one of Japan's leading radium hot springs

Niigata Agano City

"Murasugi Onsen Fuga no Yado Chouseikan" is a long-established hot spring inn in Agano City, Niigata Prefecture, boasting a vast 4,000-tsubo garden. With a history of 700 years since its opening, guests can enjoy the rare Murasugi Radium Hot Spring, which has one of the highest radon concentrations in Japan, in a huge 1,000-tsubo garden open-air bath that is among the best in Niigata for both men and women, as well as in a spacious indoor bath filled with abundant steam, together with inhalation bathing. It also features a tent sauna where Yasuda roof tiles are used as sauna stones, and where you can enjoy self-löyly with the source water of the radium hot spring and a natural spring cold water bath in a completely private setting. There are also three luxurious private open-air baths with different atmospheres, providing deep relaxation.

Hot Spring & Bath Information

Large Bath / Garden Open-Air Bath

TypeNatural Hot Spring

A superbly open garden open-air bath that boasts the largest scale in Niigata, spanning 1,000-tsubo for both men and women combined. You can lavishly enjoy the rare Murasugi Radium Hot Spring, which is among the best in Japan for radon content, in the indoor bath and open-air bath. The smooth, odorless water gently warms the body and greatly promotes metabolism and immunity. In the indoor bath, inhaling the radon contained in the steam, known as the inhalation method, is also effective, letting you enjoy the ultimate wellness together with a forest-bathing experience in nature.

Private Open-Air Bath: Chinju no Mori

TypeNatural Hot Spring

A luxurious tea-room-style private open-air bath, one unit and one room each, quietly nestled in Chinju no Mori a short distance from the main building, with each room designed differently. It includes bath tubs crafted from Murasugi Onsen bedrock and a stone bath made with locally sourced Yasuda roof tiles in a lovely reddish hue, allowing you to privately savor the famed beauty hot spring, the radium hot spring, to your heart's content while having the tranquility of nature and the rich scent of the trees all to yourself.

Sauna

Private Tent Sauna

80°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity4people

🪵 Wood-fired sauna
Men'sWomen's

A luxurious, 120-minute reservation-only tent sauna that can be enjoyed in complete privacy in the garden. The high-quality wood-burning stove made by Honma Seisakusho heats the space powerfully, accompanied by the pleasant crackling sound of burning firewood. The sauna stones are specially made from Yasuda roof tiles, a traditional craft of Agano that the local area proudly boasts. Best of all, self-löyly is possible using the source water of Chouseikan's signature radium hot spring, allowing you to deeply unwind in soft, refreshing steam.

Cold Bath

Radium Hot Spring Source Water Cold Bath

25°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity1people

Flow-through
Men'sWomen's

A cold bath unique to Chouseikan, set right next to the tent sauna and in the open-air bath area, using a cold hot spring source water of 100% natural origin. The colorless, transparent radium source water flows continuously, offering an exquisite, silky texture and a refined, soothing freshness that seems to cling to the skin. This is an extremely rare cold bath experience in Japan, where the heat of your post-sauna body is permeated by high-concentration radon and the fresh blessings of nature.

Business Hours

Monday
11:00〜10:00
Tuesday
11:00〜10:00
Wednesday
11:00〜10:00
Thursday
11:00〜10:00
Friday
11:00〜10:00
Saturday
11:00〜10:00
Sunday
11:00〜10:00
Holiday
11:00〜10:00
💡 [Day-use bathing] 11:00-14:00 or so, and the tent sauna is available from 13:00-16:00 (advance reservation required the day before)

Closed Days: None

Address

4632-8 Murasugi, Agano City, Niigata 959-1928

Hotel & Ryokan

Gender Access

Gender Separated

Tattoos in the Communal Bath
Unknown (Please Check)

The above applies to the communal (shared) baths. At facilities with private baths or private saunas, guests with tattoos may still be able to bathe. Please check with the facility for details.

Premium Magazine

Japan's Must-Visit Finest Onsen & Sauna Facilities

Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.

Learn more