Live: Tangra Yumco, a sapphire mirror embraced by snowcapped mountains

Tangra Yumco is one of only five sacred "Yumco" lakes in China's Xizang. Locally, "Yum" symbolizes the turquoise blue hue and "co" means lake. With a depth of 230 meters, Tangra Yumco ranks as China's second-deepest lake.