Onsen & Spa Services

A moment of release, nestled between the mountains,
and caressed by their soft breeze

Nagato Yumoto Onsen has been flowing since 1427, in Japan's Muromachi Period (1336-1573).
Otani Sanso's large onsen bath is located at one corner of a mountain stream at the base of a sloping foothill.
The bathing areas on the 1st and 2nd floors of the ryokan are each of a slightly different style,
and together contain 11 different baths.
Designated mens and womens bathing areas are alternated according to time slots.
With the scent of the trees, the sound of flowing water, and the birdsong carried on the wind,
allow yourself to relax mind and body in these soft alkaline waters, said to beautify the skin.

Spring Name: Yumoto Onsen　Water Type: Alkaline simple hot spring　Amount of Water Released: 675.0 L/min　PH: 9.67
Therapeutic Effects: Nerve pain, musicle soreness, joint/arthitis pain, general fatigue, general health imrpovement, etc.

Soothe your spirit with the sound of flowing water

1st Floor: Seseragi-no-Yu (Murmuring Stream Bath)

In addition to an indoor bath, Seseragi-no-Yu includes baths for lying down and a sauna, as well as cypress and stone outdoor baths, where our guests can relax amongst the greenery and trees, and the sound of trickling water.

Where the sunlight gently pours in

2nd Floor: Komorebi-no-Yu (Dappled Light Bath)

In Koromorebi-no-Yu, enjoy a spacious indoor bath with space for lying down, a jacuzzi tub and sauna, and in a half-outdoor bath, allow the soft breeze to brush lightly against your cheek. Allow yourself to forget the flow of time as you let your gaze extend farther outward.

Foot Bath

The foot bath is located at one corner of the garden on the lobby lounge side. Have a seat here and discuss your travels to the sound of the waterfall. We also highly recommend visiting at night, when the foot bath is lit up. We also take drink orders.

Hours: 4:00 p.m. - 10:00 p.m.(Last order at 9:30 p.m.)*Closed during inclement weather

Rooms with Private Outdoor Baths

The warlord of the old province of Choshu once bathed in these very Yumoto Onsen spring waters.
Enjoy them to your heart's content in the privacy of your own guestroom.

Our rooms offer four different types of scenery, from the beautiful green of the trees seen from the mountain-side rooms, to the babbling brook along the riverside, the view of both mountains and the Otozure River on the river-side, and the expanse of rich nature and the clear stream along the mountain stream-side. Discover your favorite room from among 8 different types of floor plans and sizes, and a total of 18 guest rooms.

For even further relaxation...

Aesthetic Salon & Hana-o Aroma Room

Receive a facial or foot care in our comfortable aesthetic salon.
Our aroma room is reknowned for its use of aroma in reflexology.
Make a visit for a luxurious day to soothe both your mind and mind.

[Business Hours]

Aesthetic Salon (Ladies only) ... 3:00 p.m. - 11:00 p.m. (Reception closes at 10:00 p.m.)
Hana-o Aroma Room ... 4:00 p.m. - 11:00 p.m. (Reception closes at 10:00 p.m.)

Otozure Grande Spa

The Otozure Grande Spa is located in our sister ryokan, Bettei Otozure.
Experience a blissful release of stress in this tranquil space.

[Business Hours]

2:00 p.m. - 10:00 p.m. (Reception closes at 9:00 p.m.)