Two-year-old twin sisters Tiantian (R) and Mimi (L), together with their father Huang Haibo, wait for a train to their mother's hometown in southwest China's Guizhou Province at the railway station of Hangzhou, capital of east China's Zhejiang Province, Feb. 4, 2015. The 40-day travel frenzy known as "Chunyun", the hectic period surrounding Chinese New Year, or Spring Festival, which falls this year on Feb. 19, began on Wednesday and will last until March 16. (Xinhua/Ju Huanzong)