This aerial photo taken on June 25, 2023 shows the scenery along the Hainan coastal highway for sightseeing in Qionghai, south China's Hainan Province. The opening ceremony of the Hainan coastal highway for sightseeing was held in Haikou on Monday. This 988-kilometer ring road connects most bays, capes, specialty townships, scenic spots and resorts along the coast of this island province. (Xinhua/Pu Xiaoxu)

This aerial photo taken on June 25, 2023 shows the scenery along the Hainan coastal highway for sightseeing in Chengmai, south China's Hainan Province. The opening ceremony of the Hainan coastal highway for sightseeing was held in Haikou on Monday. This 988-kilometer ring road connects most bays, capes, specialty townships, scenic spots and resorts along the coast of this island province. (Xinhua/Pu Xiaoxu)

A vehicle is seen on the Hainan coastal highway for sightseeing in Dongfang, south China's Hainan Province, Dec. 9, 2023. The opening ceremony of the Hainan coastal highway for sightseeing was held in Haikou on Monday. This 988-kilometer ring road connects most bays, capes, specialty townships, scenic spots and resorts along the coast of this island province. (Xinhua/Pu Xiaoxu)

A vehicle is seen on the Hainan coastal highway for sightseeing in Dongfang, south China's Hainan Province, Dec. 9, 2023. The opening ceremony of the Hainan coastal highway for sightseeing was held in Haikou on Monday. This 988-kilometer ring road connects most bays, capes, specialty townships, scenic spots and resorts along the coast of this island province. (Xinhua/Pu Xiaoxu)

This aerial photo taken on June 25, 2023 shows the scenery along the Hainan coastal highway for sightseeing in Chengmai, south China's Hainan Province. The opening ceremony of the Hainan coastal highway for sightseeing was held in Haikou on Monday. This 988-kilometer ring road connects most bays, capes, specialty townships, scenic spots and resorts along the coast of this island province. (Xinhua/Pu Xiaoxu)