Introduction to cloud flower stone: is a kind of low-grade lichen. There was once a seabed here 100 million years ago. Afterwards, through various changes such as land uplift and mountain extrusion, the seafloor rose to the top of the mountain and the seafloor reefs were exposed. The lichen attached to the basalt has been burned into the stone after a long period of steaming clouds, forming this beautiful pattern, which looks like the stone is blooming. Because this lichen plant can grow on bare rocks in the mountains, it is also called " Pioneers of the plant kingdom.”