Koyo

An open-air bath with panoramic views of the Zao mountain range and a skin-beautifying hot spring rich in metasilicic acid

Yamagata Kaminoyama City

"Nihon no Yado Koyo" is a luxury hot spring ryokan in Kaminoyama Onsen, Kaminoyama City, Yamagata Prefecture. It is a distinguished inn that has placed in the top 10 for more than 40 consecutive years in the "Top 100 Hotels and Ryokan Selected by Professionals." It features an 8th-floor panoramic large bath overlooking the Zao mountain range and the night view of Kaminoyama, as well as a 1st-floor Benibana bath filled with a graceful Japanese atmosphere. Blessed with one of the three great waters known for beauty benefits, it offers skin-beautifying hot spring water rich in metasilicic acid, often called nature's lotion. Guests can also enjoy a high-temperature sauna, a unique cold sauna at nearly -5 degrees, a private open-air bath, and rooms with their own hot spring baths.

Hot Spring & Bath Information

Panoramic Large Bath

TypeNatural Hot Spring

Located on the 8th floor of the building, this panoramic large bath offers sweeping views of the majestic Zao mountain range and the nightscape of Kaminoyama Onsen. It features one of the three great waters known for beauty benefits, and you can enjoy a skin-beautifying hot spring rich in metasilicic acid, often called nature's lotion. Soaking in the hot spring while admiring the spectacular view through the large windows is a truly exceptional experience. The baths alternate between men and women depending on the time of day.

Benibana Bath

TypeNatural Hot Spring

A spacious public bath on the 1st floor of the building, inspired by benibana and filled with refined Japanese charm. It is equipped with a large indoor bath and a pleasant open-air bath where you can feel the seasonal breeze of Yamagata. The hot spring, which offers outstanding skin-beautifying effects, moisturizes the skin and leaves it smooth and finely textured. It also has both a high-temperature sauna and a cold sauna, allowing you to enjoy bathing in a variety of styles.

Guest Room Open-Air Bath

TypeNatural Hot Spring

Flow-through

A private hot spring bath installed in a luxurious guest room with an open-air bath. Fresh skin-beautifying hot spring water flows in continuously, allowing you to enjoy the hot spring whenever you like without anyone disturbing you, while feeling Yamagata's beautiful mountain scenery and seasonal breeze. It is ideal for spending a special anniversary or a family trip with someone important, and for enjoying an exquisite private bathing experience.

Sauna

High-Temperature Sauna

80°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity8people

Men'sWomen's

A genuine dry sauna equipped in the 1st-floor Benibana bath and the 8th-floor panoramic large bath. The room temperature is set to a comfortable heat, allowing you to warm your body deeply and gradually. It is not too hard to breathe in and encourages a pleasant sweat. In this quiet space with no TV, you can spend a luxurious moment facing yourself. After the sauna, enjoy a refreshing outdoor bathing experience in the open-air area while feeling the pleasant breeze and looking out at the Zao mountains.

Cold Sauna Kamakura Sauna

0

Sauna TypeMist Sauna

Men'sWomen's

A unique cold sauna installed in the 1st-floor Benibana bath and cooled to nearly -5 degrees. It creates a cool, dreamlike space that feels as if you have stepped into a real kamakura. Even those who do not like cold plunge baths can cool down gently without putting sudden strain on the body. Alternating hot and cold bathing with the high-temperature sauna is expected to boost metabolism and help bring out beautiful skin.

Cold Bath

Cold Bath

20°C

Water QualityTap Water

Capacity3people

Men'sWomen's

A cold plunge bath installed right next to the sauna. The water temperature is adjusted to a pleasantly cool level, gently enveloping your heated body after the sauna and helping you cool down. Because it is not suddenly icy, you can soak slowly and cool down comfortably. After the cold plunge bath, enjoy a refreshing totonou experience with an outdoor bath in the open-air area.

Business Hours

Monday
04:00〜13:00
13:00〜01:00
Tuesday
04:00〜13:00
13:00〜01:00
Wednesday
04:00〜13:00
13:00〜01:00
Thursday
04:00〜13:00
13:00〜01:00
Friday
04:00〜13:00
13:00〜01:00
Saturday
04:00〜13:00
13:00〜01:00
Sunday
04:00〜13:00
13:00〜01:00
Holiday
04:00〜13:00
13:00〜01:00

Closed Days: None

Address

〒999-3242 Yamagata Prefecture, Kaminoyama City, Hayama 5-20

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.

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