Idou (Japanese Hiragana: Kana, Roman: izu, English name: izu), located in the eastern part of Shizuoka Prefecture, Idou Peninsula and the islands of Tokyo, is a tourist attraction in Japan. Hot springs, seafood, local products, history, nature, Idou is a place full of charm. In Tiancheng Mountain and inland areas, it sometimes snows in winter, but in coastal and Nanyidou areas, the climate is warm and the flowers blossom early, competing to tell us the arrival of spring. In addition, Idou, one of the ancient Japanese imperial powers, belongs to Donghai Dao, also known as Douzhou. Tiancheng Mountain runs across the East and west of the Idou Peninsula. It divides the Idou into two parts, namely, North Idou and South Idou. Tangdao is located in the southernmost foothills of the northern Tiancheng Mountains, surrounded by beautiful cedar forests, where the long Safari river forms deep valleys, where the water is clear and the river is planted with large areas of mustard. This area has been loved by many literati since ancient times. Indeed, the Tangben Hotel in Tangdao is the place where Kawabata Yasunari chose to write The Dancer of Izu. Jinglian Waterfall is the largest waterfall in Idou, with a drop of 25 meters. Nearby are patches of mustard fields, and there are many places where people can enjoy fishing. Because the water quality is good and clean, it is most suitable for mustard and rock fish growth. Xiushan Temple hot spring is the oldest hot spring in Yidou. It is said that it was discovered by Master Hongfa. Hot springs are located in the center of Zhongyidou, surrounded by many scenic spots and historic sites. The quiet hot spring town is surrounded by emerald green, the sound of gurgling water in Guichuan and the hot springs, which attract numerous literati and ink visitors to visit. Ducobalt soup is the birthplace of Xiushan Temple hot springs. Unfortunately, since 2010, it has been only for visitors and can not be bathed. A stone road stretches along the bamboo forest by the river, where people can quietly enjoy peace and quiet.