New Delhi: China plans to build the world's longest underwater tunnel beneath the Bohai Sea by 2026, connecting the port cities of Dalian in Liaoning province and Yantai in Shandong province. The blueprint of the
engineering wonder china to build world s longest underwater tunnelImage Source : INDIATV
It would drastically cut the current travel time between the two cities, separated by a 1,400-km drive or about 8 hours by ferry.