Uses natural hot spring water
677. Boukai, Shirahama, Wakayama Visited for higaeri for 660. Higaeri hours are 14:00-19:00. They sell the Wakayama 12 Onsen stamp book. Indoor bath with clear water, temperature around 47.8. There's cold water and tools to dilute it - brought it down to 43 quickly. A bit stuffy inside. 09.11.2025