Yueyaquan is a crescent-shaped lake in an oasis, 6 km south of the city of Dunhuang in Gansu Province, China. It was named Yueyaquan in the Qing Dynasty. According to measurements made in 1960, the average depth of the lake was 4 to 5 meters, with a maximum depth of 7.5 metres In the following 40 years, the depth of the lake continually declined. In the early 1990s, its area had shrunk to only 5,500 m2 with an average depth of 0.9 meter (maximum 1.3 meter). In 2006, the local government with help of the central government started to fill the lake and restore its depth; its depth and size have been growing yearly since then. The lake and the surrounding deserts are very popular with tourists, who are offered camel and 4x4 rides.

Saul of the Cubacigar company repairs the largest cigar in the world at the Pipe and Tobacco museum of Sint Niklaas on November 27, 2008 in Brussels, Belgium. The cigar is 6.4 meters long, weighs 460 kilos and is made of approximately 9900 tobacco leaves. (Photo by Mark Renders/Getty Images)

A child plays the ice slide at the Ice-Snow World park in Harbin, capital of northeast China's Heilongjiang Province, January 5, 2017. The theme park which used about 330,000 cubic meters of ice and snow for construction opened on Thursday. (Photo by Xinhua/Barcroft Images)

Pietro Sighel of Italy crashes during his heat of the men's 1,000-meter during the short track speedskating competition at the 2022 Winter Olympics, Saturday, February 5, 2022, in Beijing. (Photo by David J. Phillip/AP Photo)

In this March 2, 2018 photo, an Andean man rests with his llama while tourists take in the natural wonder of Rainbow Mountain in Pitumarca, Peru. Tourists gasp for breath as they climb for two hours to the 16,404-foot (5,000-meter) peak in the Peruvian Andes, but stunned by the magical beauty that unfurls before them. (Photo by Martin Mejia/AP Photo)

In this Saturday, July 14, 2018, file photo, waves caused by high tide envelops a man standing outside his house near the Arabian Sea in Mumbai, India. The man was washed away by the wave and rescued by locals about 100 meters away from the spot. (Photo by Rajanish Kakade/AP Photo)

A woman rides the world's longest urban zip line, with a speed of up to 80 kilometers per hour on a one kilometer run from 170 meter to ground level, in the Marina district of Dubai, United Arab Emirates, Tuesday, December 5, 2017. (Photo by Kamran Jebreili/AP Photo)

Sophie Weissenberg, of Germany, grabs her ankle after being injured while warming up for the women's heptathlon 100-meter hurdles at the 2024 Summer Olympics, Thursday, August 8, 2024, in Saint-Denis, France. (Photo by Ashley Landis/AP Photo)