Is there a train between Hainan and the mainland?

It's through. Hainan and the mainland have been connected by train. On June 7, 2003, 65438, the first cross-sea railway in China was officially opened, ending the history of no trains between Hainan and the mainland. Yuehai Railway, also known as Zhanhai Railway, is the first cross-sea railway in China, connecting Zhanjiang City in Guangdong Province, Haikou City in Hainan Province, Danzhou City and the general-speed railway ending in Sanya City.