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World's longest undersea tunnel to cut eight-hour journey to 40 minutes

Posted on May 1, 2026
By The Daily Star
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1 min read

World's longest undersea tunnel to cut eight-hour journey to 40 minutes

The planned Bohai Strait Tunnel in China — set to be the world's longest undersea tunnel — could slash travel time between Dalian and Yantai from eight hours to just 40 minutes, with trains running at over 150mph.