Small entrance but larger once you get into the changing room. There is a saltwater bath among the offerings on the first floor. Second floor sauna (extra cost) has been remodeled. There is also a quite cold, cold water bath and outdoor bath on the second floor. Outdoor bath has a waterfall jet in it without any splash guards. It was not that strong, but it did spray water all over the place so be careful about using it if there are other people in the bath with you. I was alone so there was no problem. This sento was used as a location for the movie “Kanemasa” (ひとくず in Japanese). It looks rather sad and I do not think I would watch it, but you can see the women’s changing room at the 12 second mark in the trailer here (content warning: child abuse). Overall a decent place but it is quite far from the station. We drove here and used the free parking lot just around the corner from the entrance.
https://youtu.be/RK664ux4PZ0?t=12
https://www.imdb.com/title/tt12415972/