Holding annual tickets is of course more cost-effective. There is a small cabinet on the right side of the gate for free checking small luggage. Big ones are not asked. Although the first day of my stay in Xi'an did not recommend this place, I had already chosen it when I saw the sights in Xi'an. This is the legacy of human ancestors, and I was not disappointed when I explored it. In pursuit of the miracles of their ancestors in exploiting nature, I could not help sighing that "the trees planted by their predecessors, the cool of their descendants" "the people know their mother, but do not know their father" is the true portrayal of the matriarchal clan. It's worth visiting. Parent-child tours are the first choice.