Be good to your body and soul with a day at an onsen. For centuries, the Japanese have enjoyed the health and socializing benefits of the hot springs bath. This activity is so popular that the country is dotted with thousands of onsens and the 300-year-old Sukayu Onsen is known as one of the most prominent hot springs resorts in Japan. Begin with lunch inside a "ryokan," a traditional Japanese inn, then head to the soothing waters. Resting on the western side of Mt. Odake, the communal bath, known as "senjin-buro" (bath of a 1,000 people) is so spacious it could accommodate a 1,000 bathers at once and it is important to enter the water without any splashing and to avoid conversation. As you soak in this serene environment, you'll feel a sense of calm take over, and your cares will float away. Refreshed, return to port.