GUANGZHOU, June 29 (Xinhua) -- Shenzhen-Zhongshan link is a core transportation hub project in the Guangdong-Hong Kong-Macao Greater Bay Area. It consists of one underwater tunnel, two bridges and two artificial islands, making it one of the most challenging cross-sea cluster projects in the world.    

The 24-km-long cross-sea link is scheduled to open to traffic on June 30. Once operational, the travel time between Shenzhen and Zhongshan will be reduced from the current two hours to approximately 30 minutes. 

This photo taken on July 15, 2023 shows workers working on the Shenzhong Bridge of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

An aerial drone photo taken on Dec. 9, 2020 shows the west artificial island of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

An aerial drone photo taken on June 27, 2024 shows the Shenzhen-Zhongshan link in south China's Guangdong Province. (Xinhua/Mao Siqian)

A drone photo taken on June 27, 2023 shows workers working on the Zhongshan Bridge of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

This photo taken on June 27, 2024 shows the immersed tube underwater tunnel of the Shenzhen-Zhongshan link in south China's Guangdong Province. (Xinhua/Mao Siqian)

An aerial drone photo taken on July 23, 2023 shows the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

An aerial drone photo taken on Feb. 22, 2023 shows a container ship passing under Shenzhong Bridge of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua/Deng Hua)

An aerial drone photo taken on June 3, 2022 shows the Shenzhong Bridge of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

This photo taken on Sept. 22, 2021 shows the Zhongshan Bridge and Shenzhong Bridge of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

An aerial drone photo taken on April 11, 2024 shows a load test of Zhongshan Bridge of the Shenzhen-Zhongshan link in south China's Guangdong Province. (Xinhua)

An aerial drone photo taken on June 20, 2023 shows the west artificial island of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua)

This photo taken on June 19, 2024 shows night view of the Shenzhen-Zhongshan link in south China's Guangdong Province. (Xinhua/Liu Dawei)

An aerial drone photo taken on July 1, 2021 shows the east anchorage of the Shenzhong Bridge of the Shenzhen-Zhongshan link under construction in south China's Guangdong Province. (Xinhua/Liu Dawei)