In 2018, China opened a crossing linking Hong Kong, Zhuhai and Macao with bridges and an undersea tunnel; the design avoided blocking major shipping lanes and airport flight paths

The Hong Kong-Zhuhai-Macao Bridge spans an impressive 55 kilometers, seamlessly linking three bustling cities. Its highlight is a remarkable 6.7-kilometer underwater tunnel designed specifically to maintain the flow of vital shipping routes and air traffic. Built from 33 massive concrete segments, this engineering marvel not only showcases innovation but also significantly cuts down travel time for commuters seeking to traverse these regions.