Hello, Mr. Cristian, since there is no direct train between Guilin and Hongkong, it is very troublesome and time-consuming for you to connect the train either in Jinhua West or Zhuzhou. The feasible way as I know is that you can take the flight from Guilin to Guangzhou or Shenzhen first, then take the express train to Hongkong intraday. As the train schedule between Guangzhou and Hongkong is very frequent, and it will take about 1hour and 50 mins from Guangzhou to Hongkong, which is quite convenient for you. Hope it helps.