I want to take my children to Chengdu and Chongqing for a self-help tour in the summer vacation. Can a friend give me a detailed, reasonable and economical strategy? The starting point is Zhengzhou

From Zhengzhou to Chengdu, set up a "Panda Card" in Kuanzhai Lane, Chengdu, and the scenic spots are free. You can go to Chunxi Road, Jinli, Wuhou Temple, Dujiangyan and Qingcheng Mountain. Take a bus from Chengdu to Xinnanmen (not far from Chunxi Road), and take a bus from Xinnanmen to Leshan. When you arrive in Leshan, of course, you will go to see Leshan Giant Buddha. Then go to Emei Mountain, go down the mountain, take a bus back to Chengdu (this is the only route), and take a train to Chongqing. You can go to Chaotianmen first, and then go to Hongyadong by bus. After playing, you can take the elevator from Hongyadong to Cangbai Road in Jiefang North. It's nice to visit three famous scenic spots in Chongqing in one day (but get up early). Then go to a tree viewing platform to enjoy the night view of Chongqing. To the porcelain mouth of Shapingba and the Three Gorges Square. There are many shopping centers in the Three Gorges Square, which are very prosperous. Then take the "Shaer Line" of "Two Roads-Shapingba" to the industrial park at Shapingba Station, take a taxi to Yubei International Airport and return to Zhengzhou. PS: I am from Chongqing and my ancestral home is Leshan, so I know these two places very well. I write every word by hand, I hope you can adopt it. Thank you.