Best travel period

　　At the beginning of May, large amount of migrant birds fly back to Qinghai Lake. If you come to visit different kinds of birds, the time is most suitable. Between Jul and Aug, it’s hottest in mainland of China, however, in Qinghai Lake area, it’s cool and very comfortable. The scenery is most beautiful and state of roads is in good condition. In Sep, you’d better prepare heavy cloths against low temperature.