At the ancient times, it was a tremendous jade called south jade that in the bottom of the lake. It was said that people who bathed in that lake would have bright white skin. So there were seven fairies from the welkin spending a whole day for bathing in that lake on midsummer every year. One year, a cow boy who gazed his cattle and horses near the lake and then peeped the sight of bathing by those fairies. After one of those fairies called Scarlet who found that they had been peeped by that cowboy, she breathed on the lake surface, leading to make the mountain surrounded by wind and fog so that the cowboy was not able to see them at all, which is the reason of the name of DaWu mountain.