How about going directly to Dunhuang for 3 days, then going to Zhangye to Xining by train, and then going to Qinghai Lake and Salt Lake for two days?

OK

Hello, landlord, you are a little short of time to play like this,

If you are alone, I suggest you carpool, Dunhuang-Jiayuguan-Zhangye-Qilian-Qinghai Lake-Xining, 6 days is just right, you can find me

Landlord, it's okay

The landlord can choose to charter a car, which is not expensive and free. With the group you understand!

Hello, your route plan is very good