"Flying kites is a good way to keep a person in good physical condition. The retired members practice three to four hours a day as long as the weather allows," he says.
Sun's team is one of 118 teams from across the country flying kites at the festival, which is scheduled to end on May 5.
Initiated in 1984, the annual event has become known around the world.
Because of the pandemic, overseas teams showed off their kites via video at the opening ceremony. In the videos, the overseas teams are seen flying their kites and expressing their hopes to meet at next year's festival.
The annual event in Weifang has become an international festival on a grand scale that brings happiness to children and adults alike, says Taejun Eom, mayor of Icheon, South Korea, in a video message.
"Weifang has successfully developed the kite industry, inserting kite-related culture into resources that are promoting the city's overall development," he says.
