The Guangdong-Hainan railway, also known as the Yuehai Railway, is China's first cross-sea rail line, connecting the island province of Hainan with Guangdong in southern China by train ferry service. The 10,000-tonne ferries carry the detached train carriages across the Qiongzhou Strait, stretching 22.5 kilometers. Join CGTN to watch how a train takes a ferry across the Qiongzhou Strait.