Day 1: Arrive in Xining, free activities, Xining, accommodation (free activities, no chartered car on the day) Day 2: [Chartered car] Xining · Riyue Mountain · Daotang River · Qinghai Lake · Chaka (hotel door-to-door pick-up, chartered car starts) Day 3: [Chartered car] Chaka Salt Lake · Secret Desert · Jinyintan Grassland · Xining (return to Xining, the chartered car ends) Day 4: Disbandment day: Xining City—go to Xining Airport by yourself