The photo shows the "Jade Lake" in Mangya, China's Qinghai province. The artificial salt lake, which when seen from afar resembles a shining piece of emerald, attracts thousands of tourists every year. (Photo: China News Service/ Huang Dong

The photo shows the "Jade Lake" in Mangya, China's Qinghai province. The artificial salt lake, which when seen from afar resembles a shining piece of emerald, attracts thousands of tourists every year. (Photo: China News Service/ Huang Dong

The photo shows the "Jade Lake" in Mangya, China's Qinghai province. The artificial salt lake, which when seen from afar resembles a shining piece of emerald, attracts thousands of tourists every year. (Photo: China News Service/ Huang Dong

The photo shows the "Jade Lake" in Mangya, China's Qinghai province. The artificial salt lake, which when seen from afar resembles a shining piece of emerald, attracts thousands of tourists every year. (Photo: China News Service/ Huang Dong

The photo shows the "Jade Lake" in Mangya, China's Qinghai province. The artificial salt lake, which when seen from afar resembles a shining piece of emerald, attracts thousands of tourists every year. (Photo: China News Service/ Huang Dong

The photo shows the "Jade Lake" in Mangya, China's Qinghai province. The artificial salt lake, which when seen from afar resembles a shining piece of emerald, attracts thousands of tourists every year. (Photo: China News Service/ Huang Dong