julesJanuary 24, 2026I'll start with 星生温泉 山恵の湯 located in Oita. There are four types of natural hot spring water are sulfur springs, simple springs, acidic aluminium springs, and cold mineral sulfur springs. The onsen has amazing view over the Kuju montains.
adusingiJanuary 24, 2026This is a tough one but If I had absolutely to choose one I will pick 花梨 located in the Bettei ITSUKI hotel in Yufuin.