Dujiangyan is a large-scale water conservancy project built in ancient times and used up to now. It is known as the ancestor of the world's water culture. It is the longest and only remaining water conservancy project in the world so far. It is the crystallization of the wisdom of the ancient Chinese people and the epoch-making masterpiece of Chinese culture. The tour guide takes us into the scenic spot from the Qinyan Tower with fewer tourists. The Qinyan Tower was originally a viewing platform. Standing on the Qinyan Tower, we can overlook the whole view of Dujiangyan, such as Yuzui Dike, flying sand weir, leaving pile, Yuleiguan Pass, Songmao Anlan Cable Bridge. While listening to the tour guide's explanation, we sigh at its magnificent momentum and the wisdom of the ancients. Anlan Cable Bridge: One of the five famous ancient bridges in China, 320 meters in length, bamboo cable bridge: wooden deck, two sides are supporting, in memory of Mr. and Mrs. He Xiande, also known as "husband and wife bridge". Legend has it that couples or lovers must cross bridges hand in hand. For my hydrophobia, close your eyes, jump your legs straight and shake, 320 meters feels good and long.