Autos and vacationers throng to a serious duty-free shopping center in Sanya on January 15, 2023. Picture: Lin Xiaoyi/GT The tropical and sunny Sanya in South China’s Hainan Province, one of many nation’s prime winter locations, is again in focus, with lengthy traces of vacationers and packed automobiles pointing to a fast rebounding of tourism and consumption.   That Sanya recaptures its magic as one of many most-visited locations is seen dovetailing with a revival on the planet’s second-largest economic system that hinges its progress on a rebooting shopper market this yr. On a Sanya-bound flight from Kunming, Southwest China’s Yunnan Province, one other sizzling vacationer spot, passengers — principally in…