Kite flying is a popular pastime in South Korea, and on the last day of the new moon during the Lunar New Year, people traditionally let go of their kites hoping their bad luck will float away with them.

The history of kites in Korea can be traced back to the reign of Queen Chindok of Silla in 637 A.D. when the military launched a burning kite at night to trick the superstitious population into believing a falling star would bring good fortune to the city of Kyongju. Traditional Korean kites, called yeon, are classified by design, shape and color, with around 100 variations.

Source: http://traveltips.usatoday.com/kite-flying-korea-100963.html