Hainan island is the most-visited domestic tourist destination in China, and is home to the world's first circular high-speed railway around an entire island. It takes less than five hours and 228 yuan ($34) for a round-the-island trip. 

CGTN's Yang Xinmeng and Eric Garrison were challenged to tour around Hainan in one day taking the high-speed rail loop. She started from Boao, and visited the three biggest cities in Hainan: Haikou, Danzhou, and Sanya.