One of the most useful onsen to know if you want to clean up before or after a night out in Sannomiya. Ninomiya Onsen is at the end of a shotengai northeast of Sannomiya station. This downtown sento is quite popular, and the staff is friendly and welcoming. The main bath is quite hot. There are some fun and rare jet baths including a spinning jet bath. There is no natural hot spring bath in the back. Years ago there might have been, but that is not the case now. Sauna might be closed.