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Drainage Canals in Japan are so clean they even have Koi Fish in it

This drainage canal in Japan is a living proof that not all canals are dirty, some can even be a habitat for animals.

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.

Netizens have gone crazy about drainage canals in Japan that are so clean, Koi Fish live in them. These schools of fish living in what supposed to be a storage of waste water amazed everyone and became an instant trending topic. After the post went viral, the canals became a tourist spot for the locals and even to some foreigners.