Drainage Canal is the Home of Colorful Koi Fishes in Japan

The drainage canal in Japan are so clean that the beautiful Koi fish swim happily in their waters. These graceful fish adorn the rainwater drainage canal along the sidewalks and streets.The Koi Fish is known for its ability to swim upstream.These are highly appreciated in Asian culture, being mentioned in the Chinese legend "The Dragon Gate" because, after overcoming obstacles, it can turn into a sacred dragon.