"Hokkaido" Japan ", which attracts tourists from all over the world, the pond is actually deformed because of the dam, which was built for protection from mud flows that may occur from the volcanic mountain active" Hokkaido ", according to the photographer," Kent Shiraishi "water contains high amounts of aluminum hydroxide, which reflects the blue light, and described "Shiraishi" Baraka most beautiful in the world. Although the color of the water changes by the day and the weather.