An observation open-air bath on the rooftop where you can have Atami’s sea and nightscape all to yourself. There is a男女 alternating schedule by time of day, and you can enjoy baths with different atmospheres such as "Gekka Bijin" and "Tsukimiso". The chloride hot spring, rich in salt, offers excellent heat retention, so the warmth lasts long after you get out of the bath. Wrapped in the scent of the sea breeze, you can fully enjoy a liberating bathing experience.

Ceramic pot baths and turtle-shaped baths attached to the large bath area. Sized for one person to soak comfortably, they let you enjoy a deeply atmospheric hot spring experience in a private-feeling setting, while feeling the open air of the rooftop.