Beniya Mukayu sits on the slopes of Yakushiyama, known as "Healing Buddha Mountain," in Yamashiro Onsen in Japan's Ishikawa Prefecture — a site that was once home to Yakuoin Temple, where monks are said to have cared for travelers through hot spring bathing and medicinal herbs. The ryokan carries that legacy forward directly: all 16 guest rooms face the property's Forest Garden and include a private open-air onsen bath, turning bathing into a personal, any-hour ritual rather than a scheduled spa visit. The property draws its name from the Zen concept of Mukayu — richness found in emptiness — and its minimalist design, built from tatami matting, washi paper, bamboo and diatomaceous earth, reflects that same philosophy of restraint and stillness.
Beyond the private in-room baths, guests can use two communal onsen — named Gensei and Usuko — separated by gender on a rotating schedule, and Spa Entei, the ryokan's dedicated treatment institute, which draws on Yamashiro's mineral-rich hot spring water (with a history spanning more than 1,300 years) and locally sourced medicinal herbs from Mt. Hakusan. Signature offerings include the Yakushiyama Treatment, built around onsen water and herbal remedies in direct homage to the mountain's healing history, alongside hot stone massages and herbal body scrubs. Guests can also join a hands-on Medicinal Herbal Ball Making experience with Spa Entei's therapists, selecting wild seasonal herbs, wrapping them in cotton cloth and steaming them in hot spring water to create their own take-home wellness ritual.
Wellness at Beniya Mukayu extends into quieter, culturally rooted rituals as well: an afternoon tea ceremony hosted personally by the ryokan's owner in one of three on-site libraries, embodying the Japanese hospitality concept of omotenashi and the idea that every encounter is unrepeatable; and a guided flower appreciation and arrangement session in the property's gardens, rooted in the same tea-ceremony aesthetic. For guests wanting a more structured stay, the ryokan offers a dedicated "Yakushiyama Wellness Retreat" package weaving these elements — onsen bathing, herbal spa treatment, tea ceremony and quiet reflection — into a single multi-day experience, alongside kaiseki dinners built around seasonal ingredients gathered from Kaga's mountains, rivers, lakes and coastline.