View of Wudalianchi Geopark in Heihe, NE China (5)

Aerial photo taken on Sept. 2, 2021 shows a volcanic barrier lake in the Wudalianchi Geopark in Heihe, northeast China's Heilongjiang Province. The Wudalianchi Geopark is famed for its volcanoes and hot springs. It has 14 volcanoes and five major volcanic barrier lakes. (Xinhua/Xie Jianfei)