Beautiful frosty scenery appeared on both banks of the Songhua River after a sudden temperature drop and attracted swarms of tourists. The frost, also known as "Wusong", or rime, usually appears during winter in the areas surrounding the Songhua River. This unusual phenomenon is the result of interaction between the cold air and warm vapor from the nearby river. Beautiful rime in Jilin is regarded as one of China's four natural wonders along with the landscape of mountains and waters in Guilin, Guangxi Zhuang Autonomous Region, the Stone Forest in Yunnan province, and the Three Gorges along the Yangtze River. (Photo: China.og.cn/Wang Mingming)
