Outdoor scene of Tian En vessel of China's COSCO Shipping Specialized Carriers Co., Ltd. on Aug. 20, 2018 during its journey among floating ices through the "Polar Silk Road". (Photos: Xinhua)

A Chinese ice-class cargo ship crossed the Bering Strait on Aug. 17, starting its maiden voyage in the Arctic's Northeast Passage, a waterway known as the "Polar Silk Road."