A bold undersea railway project is rapidly gaining traction, offering the promise of shorter journeys, stronger trade links, and an entirely new map of regional connectivity.
In China, engineers and planners are pushing forward with an ambitious plan to carve a high-speed rail line beneath the Bohai Strait, linking two bustling peninsulas through a deep, pressurised tunnel. The idea is simple: replace a six-hour trip around the sea with a fast, under-one-hour dash beneath it.