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Review Highlights
Large outdoor hotspring in Kusatsu

NIce park at the outside of the outdoor hotspring. Inside, there is one big pool that has fresh... read more

Reviewed 3 January 2018
Must visit in kusatsu

Great place to visit if you are in kusatsu. Even though they are no showers, the water is natural... read more

Reviewed 31 January 2017
Matthew K
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  • Excellent46%
  • Very good35%
  • Average17%
  • Poor1%
  • Terrible1%
Travellers talk about
“outdoor bath”(3 reviews)
“hot water”(2 reviews)
“hotter”(2 reviews)
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521-3 Kusatsu, Kusatsu-machi, Agatsuma-gun 377-1711, Gunma Prefecture
+81 279-88-6167
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Reviews (264)
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All reviews outdoor bath hot water hotter bucket scenery bathers body pool lockers fall nature onsen spring
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1 - 10 of 15 reviews
Reviewed 14 November 2018 via mobile

It is a very big outdoor bath along the river. The hot water is good and the scenery is also the best. There is no washing place, so it is attention because it is only hot water. 川沿いにあるとても大きな露天風呂です。 湯加減も良いし、景色も最高です。 洗い場はなく、お湯だけなので注意です。

Date of experience: November 2018
Thank yakkun-h
Reviewed 27 October 2018 via mobile

The open bath is really nice. I came on early fall at night around 6 PM. It's really nice to take a bath when the temperature is cool. The water wasn't very hot. But if you come closer to the water fall, the temperature will...More

Date of experience: October 2018
Thank JeffreyJeconiah
Reviewed 12 June 2018 via mobile

This is a very nice place to enjoy the onsen in Kusatsu, the pool is huge and the nature around is beautiful. To get to the onsen you have to have a short walk through the park bubbling with hot spring water and foodbaths everywhere,...More

Date of experience: June 2018
Thank Anette L
Reviewed 9 March 2018 via mobile

This place has left a very good memory in me and will always be in my mind until I get to visit again. With a beautiful snowy mountainside view, a wooden (cypress?) fence around, sitting beside the center rock in the pool with a towel...More

Date of experience: March 2018
Thank justinea207
Reviewed 3 January 2018

NIce park at the outside of the outdoor hotspring. Inside, there is one big pool that has fresh fed water from the main source of hot spring.

Date of experience: December 2017
Thank GintamaZ
Reviewed 29 October 2017

My wife and I just finished a rainy weekend in Kasutsu, and the Sai no Kawara onsen was our last stop before heading to the bus/train back to Tokyo. We had walked around the park like area the day before enjoying the foot bath and...More

Date of experience: October 2017
Thank John A
Reviewed 18 March 2017

Probably the largest onsen pool in a natural setting that I have been in. It can accommodate up to a hundred bathers and the Kusatsu scenery in the background adds to the experience.

Date of experience: March 2017
Thank thelonious22
Reviewed 31 January 2017

Great place to visit if you are in kusatsu. Even though they are no showers, the water is natural and relaxing. This is an outdoor onsen and it is very large. Great view from the onsen and definitely a place you need to go in...More

Date of experience: January 2017
Thank Matthew K
Reviewed 26 June 2016

If you are visiting Kusatsu, I highly recommend that you visit this onsen. It is an outside public onsen. Entrance fee is low (600 yen in April 2016), and you can buy a towel at the onsen's entrance if you don't have one. (320 yen...More

Date of experience: April 2016
1  Thank SCV913
Reviewed 16 April 2016 via mobile

Unlike most hot springs, there isn't a place for you to have a shower before entering. The hot spring bath is quite large and nice enough although not as beautiful as the posters. There are many bugs in the water, more so than other outdoor...More

Date of experience: April 2016
1  Thank redeyeblues
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Questions & Answers
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Ivan Y
26 November 2017|
Response from John A | Reviewed this property |
There was a young child in with his Dad when I was there - maybe 4 or 5 years old. Not sure what the age cut off is or the guidelines for kids are but families do seem welcome.
5 July 2015|
Response from Gaikokujin P | Reviewed this property |
Book an express train ticket - all seats are reserved - from Ueno station (bear in mind that at Shibukawa train station the train divides in two, one half going to Kusatsu and Manza-onsen and the other one to... More
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