Sai no kawara (Gunma-ken)
̉͌ (Qn)


Entrance fee : 500 yens
Bathing time from 07:00 to 20:00
(from 9:00 in winter)
Home page (general information in Japanese)
Phone : 0279-88-6167
Address :
Maps : Mapfan - Google

Number of baths









Spring information

Water type : simple acid
Main spring : 79°C pH=1.6

Onsen in Gunma-ken

Chojukan (Hoshi Onsen)
Hamaya ryokan (Kawafuru Onsen)
Takaragawa (Takaragawa)
Anahara yu Toushuukan (Oigami)
Gorokaku (Oigami)
Chuseikan (Shima Onsen)
Chuseikan ryokan (Shima Onsen)
Shima Grand Hotel (Shima Onsen)
Shima Tamura (Shima Onsen)
Sekizenkan (Shima Onsen)
Hotel Kojokaku (Sarugakyo Onsen)
Shirane Onsen (Marunuma Kogen)
Yamaguchi Rotenburo (Shima Onsen)
Kawarayu (Kawarayu)
Mountain View Lodge (Kusatsu Onsen)
Nikawa no yu (Kusatsu Onsen)
Ootaki no yu (Kusatsu Onsen)
Sai no kawara (Kusatsu Onsen)
Shirahata no yu (Kusatsu Onsen)
Manza Prince Hotel (Manza)
Manza Kogen Hotel (Manza)
Manzatei (Manza)
Shiriyaki Onsen (Shiriyaki Onsen)

Other prefectures in Kanto


Other links
Great official web site of Kusatsu, with many information in English

The rotenburo in September


(explanation on symbols)

Ratings   (explanation of our rating system)

Global rating :    
This is the largest onsen in Kusatsu, located very close to the ski field. Women and men have two separate rotenburo, which are popular - and hence crowded. The temperature of the water can be quite high.

Size :      
It will take you some time to call around this bath of large proportion.

View :   
The baths are located in a wood, in a very pleasant surrounding. Unfortunately, the separation between the men's and the women's baths, a wooden wall, is very noticeable, making is a little less bucolic than we would have expected. The view is stunning in winter, when a lot of snow is present around the baths.

Area :     
Kusatsu area attracts visitors all year round. In Summer, the Kusatsu-Shirane volcano is a must, with its extremely acid, emerald-green crater lake; visitors are not allowed to reach the shore of this lake, but are offered a breathtaking view on it. In winter, Kusatsu transform to a lively ski resort. People spend then their time between the ski fields and the onsen. In the middle of the town, the Yubatake is a natural system for cooling down the onsen water, which flows at 5000 liters per minute! In Kusatsu, some 20 free public baths, usually small, can be found.

   Visit the Secret Japan forum for a guide of Manza


The rotenburo in February

In the woods around the bath, the winter view is even more impressive