Introduction to the Walking Marriage Bridge: The Mosuo people, who live in a "matriarchal family", adhere to the "walking marriage" custom of "men do not marry and women do not marry". This wooden bridge spans the Caohai Sea and connects the villages on both sides of the river. It is more than 300 meters long and provides a convenient passage for the "walking marriage" "Axia". "The magpie bridge of love is the best in the world."