Tourists have fun at an ice and snow amusement park in Mohe, northeast China's Heilongjiang Province, Jan. 8, 2021. Known as China's "North Pole," Mohe has an annual ice and snow period of up to eight months, with the lowest temperature reaching minus 50 degrees Celsius. The city has developed a variety of winter tourism programs to boost winter travel. (Xinhua/Xie Jianfei)