How do I get from Hong Kong to Sanya? I would prefer a bullet train. Thanks

There is no direct train service from HK to Sanya, you need to make a transfer in Guangzhou. Take a direct cross-border train from Hung Hom Station to Guangzhou East. And then take a normal speed train to Sanya.

It is time-consuming. To save time, it is best to directly fly to Sanya and it takes only 2 hours.