Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Beniya Mukayu is one of Japan's most celebrated luxury ryokan, located in Yamanaka Onsen in the Kaga Onsen spa district of Ishikawa Prefecture on the Sea of Japan coast, whose sulfurous thermal waters and exceptional hospitality have earned it recognition as one of the finest traditional Japanese inns in the world. The name 'Mukayu' — meaning 'without boundaries' — reflects the inn's philosophy of seamless integration between interior and the surrounding nature, expressed through panoramic views over the Kakusenkei Gorge, private rotemburo (outdoor baths) perched above the cedar forest, and guest rooms designed as meditations on the Japanese art of space, light, and material. The Yamanaka Onsen waters, flowing from the same geological source as the other Kaga onsen, are alkaline and skin-softening, and the setting in the cedar gorge above the Daishoji River creates an atmosphere of profound mountain quietude. Beniya Mukayu represents the absolute pinnacle of the Japanese ryokan and onsen tradition — a destination where architectural mastery, culinary art, and exceptional thermal waters combine in an experience of transcendent beauty.
Insider tip — Yamanaka Onsen in Ishikawa's Kaga district is one of the three celebrated hot spring towns of Kaga alongside Yamashiro and Katayamazu, praised by the haiku master Matsuo Basho during his 1689 journey through Oku no Hosomichi. The clear bicarbonate waters flow through a gorge carved by the Daishoji River and are famed for their effect on skin and joint complaints. The Kiku-no-yu public bathhouse at the heart of town is a stunning piece of contemporary Japanese architecture by Kengo Kuma, worth visiting for the building alone. Beniya Mukayu, the legendary ryokan in the hills above town, is consistently ranked among Japan's finest inn experiences.