A large public bath and panoramic open-air bath located on the top floor, boasting magnificent views over Suruga Bay. Richly flowing through the baths is Toi Onsen, the celebrated and oldest hot spring in Nishi-Izu, with origins dating back to the Edo period (using a combined system of dilution, heating, and circulation filtration). You can enjoy a luxurious soak while watching the superb sunset sink into the sea. This mildly alkaline sulfate-chloride hot spring is highly effective at retaining warmth, so the pleasant post-bath warmth lasts a long time.

A luxurious private open-air bath available in 20 of the 36 rooms. Each room has its own distinctive character, such as hinoki wood barrel baths, and fresh hot spring water from 100% free-flowing natural source water continuously overflows from the tub without any dilution or heating. On your private terrace, you can enjoy the famous hot spring whenever you like, while feeling the pleasant sea breeze from Suruga Bay in a truly soothing private retreat.

A reservation-only panoramic private open-air bath, ideal for taking in the beautiful scenery of Suruga Bay in complete privacy (40 minutes per session, 1,500 yen). Soaking in the luxurious waters of Toi Onsen, it is the perfect place for families or couples to leisurely enjoy Nishi-Izu's famous beautiful sunsets and star-filled night skies together, away from everyone else.