A large bath with a Japanese motif called Mahoroba. It consists of the indoor bath Sennraku, the bath with Izu stone called Kōbu, and the summit open-air bath Kira, which offers a sweeping view of the vast Pacific Ocean. The colorless, gentle weakly alkaline simple hot spring is easy on the skin, and bathing while gazing at the sea slowly melts away both physical and mental fatigue.

A Western-style large bath where you can feel the refreshing breeze blowing across Tatadohama. Enjoy the hot spring in a resort-like space with an indoor bath called WAVE, a jacuzzi, and a sailing spa named Mermaid, inspired by a ship's sail. Soak in the soft, gentle hot spring water and enjoy an open, tropical resort-like atmosphere.

A reservation-only private open-air hot spring bath built in the spot closest to the beach in the building. The beautiful seascape of Tatadohama right before your eyes and the sound of the waves create an overwhelming sense of realism and exhilaration, as if you were bathing from a prime seat on the beach. A special bathing experience where you can fully enjoy the hot spring in a private space with your loved ones without worrying about others.