People in northeastern China’s Heilongjiang province recently switched into their winter clothes after a strong cold wave hit the region.

The lowest temperature of Heihe, a northwestern city of the province, dropped to 12 degrees Celsius, and the cold wave is expected to last another week. Tourists even lined up to buy heavy coats to keep warm. Some of them from south China joked that it is good to be here in the summer to avoid the scorching heat at home.