Introduction to smoke and clouds: The smoke and clouds of Hengshan and the pines of Huangshan have been famous since ancient times. The clouds in Nanyue in spring and winter cover the sky and the earth, thick and solemn, like a splash-ink landscape painting; the clouds in summer swing like feathers, light and agile like a light and bright poem; the clouds in autumn are the most changeable, making people feel Fascinated.