China is adding yet another superlative to its aviation roster: The world’s largest airport on a man-made island.

From CNN, currently under construction off the country’s northeast coast, the Dalian Jinzhou Bay International Airport will eventually cover a 20-square-kilometer (7.7-square-mile) island with four runways and a 900,000-square-meter (969,000 sq ft) passenger terminal, according to an airport statement.

Its operators aim to handle 80 million passengers per year across 540,000 flights, with the first phase due to open in 2035.