As winter deepens, a salt lake in north China's Yuncheng City in Shanxi Province has transformed into a palette, with waters changing into vibrant hues due to the temperature drop and algal blooms. /VCG Photo

Aerial photos on Thursday show the lake appearing in bright yellow, deep blue and fiery scarlet. The colors were caused by algae species Dunaliella salina, which changes colors when exposed to different water conditions. /VCG Photo

Yuncheng's salt lake, popularly known as China's "Dead Sea," is the world’s third-largest sodium sulfate inland lake, covering an area of 120 square kilometers. /VCG Photo

Local people have relied on the lake for salt production for thousands of years. The lake is also rich in a variety of minerals and attracts visitors with hot spring and spa treatments. /VCG Photo