The Incheon International Airport, the largest airport in South Korea and one of the largest and busiest airports in the world, and its surrounding was build on the costs of huge space of internationally important tidal flats. Further extensions are planned. The picture shows embanked areas south of the airport, where further development is under way, as well as some of the remaining tidal flats. How the loss of valuable coastal habitat can be compensated and remaining tital flats protected is a big future challenge and opportunity for the country.