Everyday, there are regular departures from Beijing (T201/204, departure time 18:10, travel hours: 35 hours), Shanghai (K511， departure time 09:50, travel hours: 36.5 hours), , and Guangzhou (K407, departure time 21：25, travel hours: 15 hours and a quarter) to Sanya. Though this isn't the fastest way to travel, it's a greener mode of transport than driving or flying. However, you will get an opportunity of enjoying the amazing views en route or relish the extra time it takes, For travelers with ample time and want to see more scenery on the way, this is a good choice. The bonus is experiencing the cross-straits train ferry from Xuwei, Guangxi Province to Haikou, Hainan Island.
Ticket infomation is available by calling the following numbers:
This is a very useful link about tips of train traveling in China: http://home.c2i.net/schaefer/traintravelling.html