There is nothing interesting in Hami. There is a park, which I forgot a few years ago. After Hami arrives at Liuyuan, it takes two hours to get to Dunhuang by car. I suggest you go camping in Mingsha Mountain at 7 pm. It is not recommended to go to Yumen Pass in Yangguan. It's boring, but it's a long way. There is no need to go to a ghost town. Going camping can be dangerous. The sandstorm is too big. You can rent a chartered car, but the driver may not wait for you. It is suggested to stay in Dunhuang for one more day and go to the ancient city of Dunhuang, namely Dunhuang Film and Television City, where you can play ancient roles, including ancient restaurants, pubs, stalls and so on. There is also a night market in Dunhuang, which is a pedestrian street. There are many snacks and specialties. Going back, I suggest taking Jiayuguan Road, because Delingha is really nothing interesting.