Photos taken on Tuesday show ice pushed ashore or piling up in Bosten Lake in northwest China's Xinjiang Uygur Autonomous Region.
The natural phenomenon, called ice shoves, is caused by temperature rise and strong winds. When the weather warms, ice in the ocean or a lake near the shore will first thaw. Strong winds then push the ice ashore, creating piles that could be over ten meters high.
The natural phenomenon could cause damage to homes and plants nearby.
Amateur photographer Nian Lei, based in Xinjiang, has been photographing Bosten, the largest inland freshwater lake in China, for over three years.