Rainbow Bridge is made up of blue sky, white clouds, heavy rain and the sun.

Rainbow Bridge is an optical phenomenon, which is formed by sunlight shining on water droplets in the air. When sunlight passes through water droplets, the light will be refracted, reflected and scattered, thus forming a beautiful rainbow bridge scene. Rainbow Bridge usually presents seven colors, including red, orange, yellow, green, cyan, blue and purple. This optical phenomenon is not only beautiful, but also very interesting, enabling people to appreciate the beauty and magic of nature. At the same time, Rainbow Bridge often appears in some literary, artistic and photographic works, and becomes the source of inspiration for people to express their feelings and create beauty.