"Set in the forest, Yuyama No Sato is a mountainside onsen that truly feels like an escape from the city—the owner, now 86, created it after retiring and I found its design endlessly discoverable. One minute in the milky bath next to a waterfall convinced me of its restorative power; because it’s an outdoor mixed-gender bath where swimsuits are required, it’s also a comfortable option for first-time onsen visitors." - Kim Kay Kim Kay Kim Kay is a freelance writer with a focus on Japan travel and culinary culture. Her writing has appeared in Travel + Leisure, Tokyo Weekender, ByFood, and other travel and lifestyle platforms. Travel + Leisure Editorial Guidelines