Manza Onsen Nisshin Kan

万座温泉 日進舘 Visited for higaeri on 10.06.2025. Open from 11 to 17, entry until 16, 1000 yen. Two onsens available: indoor Chouju-no-yu and rotenburo Gokuraku-no-yu. The indoor one is inside the hotel. The women's side has four baths. One is 100% source water, not hot (feels like 38°C). Second around 42°C. Third 40-41°C with utaseyu. Fourth around 38°C, clear — not sure it's onsen water. The first and second were the best. There's a window open near the second one, with a very pleasant breeze. The rotenburo is fire. Located separately from the hotel, a couple of minutes toward the local yubatake. Super simple, no shower (but there is a toilet), view of a lunar landscape. Water is just what the doctor ordered. Not hot, not cold. Feels like around 40-41°C.