Day 1: Departure place—Xining (24H destination car pick-up/station service, free activities to feel the charm of Xiadu) Day 2: Xining—Qinghai Lake Erlang Sword—Chaka Sky One—Delingha (walk along the plateau sapphire lake, sigh the purity of the sky mirror) Day 3: Delingha - Emerald Lake - Mingsha Mountain Crescent Spring - Dunhuang (explore the core lake of Emerald Lake, play with desert pearls) Day 4: Dunhuang—Mogao Grottoes—Jiayuguan (appreciate the murals of Feitian, enter the famous steel city) Day 5: Jiayuguan—Zhangye Colorful Danxia (color world, geological wonder)—Zhangye (train connection)—Lanzhou Day 6: Lanzhou return trip (intimate gift of local 24-hour shuttle bus or station, treasure travel memories, look forward to the next meeting)