Gunma

Gunma has Kusatsu Onsen, where more hot-spring water rises naturally than anywhere else in Japan. The steaming Yubatake in the town center is free to watch and has foot baths, so even families with a baby too small for the baths get the experience. It suits families trying onsen for the first time.

Family-checked spots for this area are on the way.

Nearby prefectures:TokyoKanagawaChibaSaitamaIbarakiTochigi