Day 1: Hello; Dunhuang! Pick up day! Day 2: Dunhuang-Museum-Mingsha Mountain Crescent Spring Day 3: Dunhuang - Mogao Grottoes - Dunhuang Academy of Painting Day 4: Dunhuang - Son of the Earth - "Mirage" - Suoyang City - Yulin Grottoes - Dunhuang Day 5: Dunhuang - Yangguan - Yadan Devil City - Yumenguan - Dunhuang (search for the relics of the two passes, explore the ancient city of Yadan) Day 6: Dunhuang—End of the itinerary (Treasure travel memories, look forward to the next meeting)