This trip to the stunning Zhangye Danxia National Geological Park also known as the Rainbow Mountains. Considered one of the most beautiful places in China, the national park is famous for its colorful Danxia landform and fascinating multicolored mountain folds. To stay in the park until 8:00 PM, so you’ll see the best colors of the mountains. At sunset, there will be less clouds to cover the park, and there will be a mix of light and shadows.