The world's longest sea bridge has opened. It links Hong Kong, Macau and mainland China. It is 55 kilometres long and took 10 years to build. There are special islands in the river to support the bridge. There is also a 6.7-kilometre tunnel in the middle. This is for ships to sail over. The new bridge is longer than 14 Golden Gate Bridges. The bridge will cut the travel time between mainland China and Macau by two-and-a-half hours.
China's president attended the opening ceremony. He hopes the bridge will connect 68 million people. Up to 29,000 cars will cross the bridge every day. A trade expert said the increase in goods and passengers will benefit China. Tourists can drive across the bridge, but local car owners must have a special permit. Most drivers will take a shuttle bus across the bridge. This will cost about $8-$10 per trip.