This photo taken on June 29, 2024 shows an underwater highway hub interchange of the Shenzhen-Zhongshan Link in south China's Guangdong Province. The Shenzhen-Zhongshan Link, a mega cross-sea passage in south China that features two bridges, two artificial islands, and an underwater tunnel, opened to traffic at 3 p.m. on Sunday.

Spanning 24 km, the link drastically reduces travel time between the city of Zhongshan and the technology hub of Shenzhen, situated on opposite sides of the Pearl River Estuary in Guangdong Province, cutting the duration of the trip from two hours to around 30 minutes. (Xinhua/Liu Dawei)