Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Yufuin is one of Japan's most visited onsen resorts, in Yufu city in Oita Prefecture at the foot of Mount Yufu in central Kyushu, where siliceous hot spring waters feed hundreds of private and communal bathhouses in a town that has successfully balanced thermal wellness with artisan culture, boutiques, and a distinctly village-scale atmosphere. The Yufuin basin, draped in morning mist and watched over by the symmetrical twin peaks of Yufu, produces some of Oita Prefecture's richest siliceous waters, valued for their skin-conditioning properties and the deep muscular relaxation they induce. Yufuin Yutopia is one of many establishments in this celebrated resort town offering access to siliceous onsen bathing within a cultural landscape that blends the quintessentially Japanese art of ryokan hospitality with Kyushu's extraordinary volcanic geothermal richness.
Insider tip — Yufuin is one of Kyushu's most visited onsen resort towns, set in a broad basin overlooked by the twin peaks of Yufu-dake volcano. The town blends traditional ryokan culture with boutique galleries, craft shops, and farm-to-table dining along willow-lined canals. The bicarbonate-rich waters are renowned for their gentle, skin-softening qualities, and many ryokan feature private outdoor baths with direct volcano views. Arrive by the scenic Yufuin no Mori limited-express train from Hakata for a journey that is part of the experience.