The world's sea bridge has opened. It links Hong Kong, Macau and China's . It is 55 kilometres long. The bridge took a to build. Builders made islands in the river to provide for the bridge. There is a 6.7-kilometre tunnel in the middle of the bridge. This is for to sail over. The new bridge is longer than 14 Golden Gate Bridges. The bridge will cut the it takes to travel from mainland China to Hong Kong and Macau. The time to Macau has been cut from three hours to just 30 minutes.
China's president attended the opening on Thursday. He hopes the bridge will connect 68 million people in 11 . Up to 29,000 cars will cross the sea link by 2030. A trade and tourism said: "This makes Hong Kong a lot accessible for goods, passengers and , so this is a from the economic perspective." Tourists will be able to drive across the bridge, but car owners will have to buy a special . Most drivers will take a shuttle bus to make the . The shuttle buses will cost $8-$10 per trip.