Koinobori are colorful carp-shaped streamers displayed outside homes in Japan around May 5. They are traditionally associated with Tango no Sekku, a seasonal celebration wishing for the healthy growth of boys. Today, May 5 is also Children’s Day, a national holiday celebrating all children. The sight of carp streamers swimming in the spring breeze is one of the pleasures of this season.
According to a Chinese legend, a carp that successfully swims up a waterfall transforms into a dragon. The carp therefore symbolizes strength, perseverance, and success in overcoming difficulties. Koinobori express the hope that children will grow up healthy and strong.
Above the carp streamers, a five-colored windsock called a Goshiki Fukinagashi is often displayed. Its colors represent the five elements of traditional Chinese philosophy: blue (or green) for wood, red for fire, yellow for earth, white for metal, and black (or purple) for water. These five colors have long been associated with protection against evil spirits and misfortune.
In urban areas where homes may not have enough space for large Koinobori, people can still enjoy colorful displays in parks and other public spaces.
