An ocean-view bathing area where you can soak in Shirahama's waters, one of Japan's three ancient hot springs with a history of over 1,350 years, while overlooking Tanabe Bay. The experience of sea breezes and the scent of hot spring water offers a singular time unique to Nanki Shirahama. The Silky Bath surrounds the body with ultra-fine microbubbles, leaving the skin feeling silky smooth after bathing. Reclining baths allow you to lie back and float with the buoyancy of the water, putting little strain on joints and muscles for long-lasting relaxation. There is also a living-room-style space with a fireplace and floor heating for perspiration, where you can leisurely relax with a drink—the relaxing living area completes the space.

Features a large indoor tub made abundantly with sacred Koya-maki wood from Mount Koya and an open-air bath surrounded by lush forest. The walls of the large bath display a portrait of an immortal by ceramic artist Reizo Aoyama and a Tang-era poem by Tao Yuanming, while soft indirect lighting creates a dreamlike atmosphere. In the open-air bath you can immerse yourself in Shirahama's spring water gushing from the earth and feel at one with nature. The fragrance of sacred wood blended with hot spring steam makes this an elegant bathing place that can only be experienced at Hotel Kawakyu.