The feature of Tsukioka Onsen is its hot spring, which boasts the highest amount of sulfur in Japan. It has the effect of dissolving the keratin in the skin, making it smooth and youthful. Additionally, the sulfur component stays in the body for a long time, earning it the nickname "hot spring of longevity and eternal youth." Furthermore, the color of the hot spring at Tsukioka Onsen is a beautiful emerald green, often mistaken for bath additives. Combined with the vast rural and mountain landscapes visible nearby, the sounds of nature, and the scent of the mountains and water, it's sure to refresh not only the body but also the mind!