The Shenzhen-Zhongshan Link, a mega cross-sea passage in south China that features two bridges, two artificial islands, and an underwater tunnel, marked significant achievements throughout its seven-year journey.

Spanning 24 kilometers, 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.