Welcome to Kusatsu Onsen Mangun
Founded in 1598. We welcome our guests with the spirit of a hot-spring cure in mind.
All of the six bathhouses are fed by two sources of hot spring water, and all are free-flowing.
You can enjoy a moment of simply savoring the power of Kusatsu’s original hot spring water.
Three minutes on foot from Yubatake, the center of the hot spring resort area.
Enjoy a relaxing time in the hot spring water of Kusatsu, loved by writers and artists.
panoramic view 
Entrance. 
Entrance 
Yuuzan-no-yu (Nishi-no-kawara fountainhead) 
Bandai no Yu 
Waterfall in the courtyard 
flower corridor 
flower corridor 
Unsho-an open-air guest room with open-air bath 
Waterfall in the courtyard
Hot Spring
Hot Springs in Boun
Two of Kusatsu’s representative springs, the Nishi-no-kawara fountainhead and the Bandai fountainhead, are generously available.
Please enjoy the three large baths and three open-air baths.
Bandai no Yu 
Bandai no Yu open-air bath 
western hot spring 
West hot spring open-air bath 
bathhouse used for prostitution (Edo period) 
Yuzan-no-yu open-air bath 
sauna
Rooms
Boun Room
Spacious Japanese/Western style rooms with natural hot spring indoor bath, quaint Japanese style rooms with natural hot spring outdoor bath,
standard Japanese style rooms, Western style rooms, Japanese/Western style rooms, etc.
to suit your travel needs.
New Honkan Japanese/Western Style Room with Onsen (Hot Spring) Tatami room 
New Honkan Japanese/Western style living room with hot spring bath 
New Honkan Japanese/Western style bed room with hot spring bath 
Indoor bath (New Main Building Japanese/Western style room with indoor hot spring bath) 
Unsho-an Japanese-style room with open-air bath 
Unsho-an Japanese-style room 
Unsho-an Japanese-style room 
Unsho-an Japanese-style room 
Unsho-an Twin Room 
Honkan 10 mats Japanese style room
Cuisine
Boun’s Cuisine
We use local specialties and seasonal ingredients, and prepare them with care every day.
An example of a dish 
An example of a dish 
An example of a dish 
An example of a dish 
An example of a dish 
An example of a dish 
Wagyu Shabu Shabu
About us
Mochiun’s Progress and Seasonal Hospitality
Information on the history of watchtowers and floral hospitality.
Mochiun in the Meiji Era 
Meiji Era Yubatake 
Haiku by Kobayashi Issa 
Entrance Flower 
flower corridor 
Courtyard Waterfall and Fishing Shinobu 
flower corridor 
Courtyard Rhododendron 
Courtyard Autumn leaves
Facilities
Mochiun Facilities and Services
Information on Mochiun’s facilities and services.
Entrance 
Lounge (free drinks are available) 
front 
Private dining room “Unrei” 
Private dining room “Unrei” 
Private dining room “Unrei” 
Small Banquet Hall Aisle 
small banquet hall 
Patterned yukata rental corner 
store
Access
433 Kusatsu-machi, Agatsuma-gun, Gunma Prefecture, 377-1711
TEL: (0279) 88-3251 / FAX: (0279) 88-3241