802. Osakaya Ryokan, Kusatsu Onsen, Gunma I went for a day visit for ¥1,000. Day visits are listed from 13:00 to 16:00. 1. Indoor bath. The water is clear, temperature 44. Breathing inside is manageable. 2. Small outdoor bath. View of the stonework. The water is clear, and there is lime at the bottom near the source outlet. Temperature 43.5. There is a large beam for stirring the water. 14.01.2026
Day Use
Yes13:00–16:00
¥1,000
Bathing & Water
Natural onsen water
Uses natural hot spring water
Outdoor BathYes
Open-air outdoor bath
Indoor BathYes
Enclosed indoor bathing area
Policies & Services
WashingYes
Shower, wash stations, soap and shampoo provided