A natural hot spring with panoramic views of Kasado Bay. This chloride spring containing sodium and calcium has an extremely high heat-retention effect and warms the body thoroughly from the core. The men's and women's large baths alternate daily, and feature an open-air infinity bath that makes you feel as if you are one with the sea, as well as an atmospheric open-air stone bath. You can spend a luxurious moment soaking in the water while wrapped in the sea breeze. It is also highly effective for relieving neuralgia, improving sensitivity to cold, and recovering from fatigue.

A luxurious carbonated spring set in the open-air area. Carbon dioxide dissolved in the water is absorbed through the skin, widening blood vessels and dramatically improving circulation. Because the water is set at a lukewarm temperature, you can enjoy a long soak while gazing at the magnificent scenery of the Seto Inland Sea. It also helps refine the skin's texture, while the sea breeze and fine bubbles from the carbonated water gently soothe both body and mind.