Gujo Hachiman: The Cleanest Ditch in the World, the Water is Drinkable

Gujo Hachiman is one of the most beautiful cities in the world. A city located in Gifu Prefecture which is famous for its clean and charming water system. This city was discovered in the 16th century after the construction of Hachiman Castle. Gujo residents have operated the same water system since the 17th century. Even though they use the water to wash rice, vegetables and clothes, residents are required to follow established procedures to ensure the water remains clean and pure.