I want to drive from Guiyang to Sanya, Hainan. How can I get to the detailed route? Passing through some cities. The more detailed, the better.

Take Blue Ocean Expressway (G75) to Xuwen via Duyun, Nanning and Zhanjiang, get off G207 National Road and walk 10 kilometers to haian port, get on the ferry and cross the sea, and take Hainan East Line Expressway to Sanya. It is about 990 kilometers from Guiyang to Xuwen haian port, and the toll is about 450 yuan. The transfer fee from Hai 'an to Haikou is 425 yuan for one driver and 45 yuan for the rest. There is no toll station on the expressway in Hainan, so the toll is added to the fuel fee. You'd better fill it up before Xu Wen crosses Haikou.