Navigator Lin Hongpin observes a ship docking in Yangpu, south China's Hainan Province, Sept. 25, 2020. A qualified dock navigator has to be familiar with local hydrological environment and navigate ships to dock smoothly. Currently, a total of 22 navigators work at five different docks in Hainan. In spite of uncertain working hours and various weather conditions, they managed the burden both physically and mentally. During the past months in 2020, navigators have guided ships for over 4,200 times to ensure the smooth operation of the docks. (Xinhua/Pu Xiaoxu)
