Yukichichibu Onsen

Niseko Yumoto Onsen, whose hot springs originate from the Oyunuma marsh, boasts seven open-air baths and a famous "mud bath" in the women's section, all featuring sulfurous spring water. It is certified by the Japan Hot Spring Association. Day-use bathing: Adults 900 yen, Elementary school students 300 yen (please check before use).