It takes seven days for students to travel from Guangzhou to the Mogao Grottoes in Mingsha Mountain in Yueya Spring Jiayuguan, Gansu Province in June. What else should they pay attention to? (Book hot

It takes seven days for students to travel from Guangzhou to the Mogao Grottoes in Mingsha Mountain in Yueya Spring Jiayuguan, Gansu Province in June. What else should they pay attention to? (Book hotels in advance, etc. Gansu Yueya Spring, Mingsha Mountain and Mogao Grottoes are all in Dunhuang, a county-level city in Jiuquan, Gansu Province, which goes to Dunhuang via Jiayuguan. Take the train from Guangzhou to Jiayuguan and visit Jiayuguan at the western end of the Great Wall of Wan Li, 1 day. Now take the train to Dunhuang, and spend 2 days in Dunhuang, including Crescent Spring, Mingsha Mountain and Mogao Grottoes. Train fare from Guangzhou to Jiayuguan and Dunhuang 1.200 yuan (hard sleeper), Jiayuguan for one day 1.50 yuan, 300 yuan for one day, 200 yuan for one day in Dunhuang and 350 yuan for one day. The total is about 2800 yuan.