With an average temperature of 19℃, the Sumu Mountain scenic area in Ulaanqab, North China's Inner Mongolia autonomous region, is a popular resort for tourists to escape the summer heat. [Photo provided by Inner Mongolia Tourism]

With an average temperature of 19℃, the Sumu Mountain scenic area in Ulaanqab, North China's Inner Mongolia autonomous region, is a popular resort for tourists to escape the summer heat. [Photo provided by Inner Mongolia Tourism]

With an average temperature of 19℃, the Sumu Mountain scenic area in Ulaanqab, North China's Inner Mongolia autonomous region, is a popular resort for tourists to escape the summer heat. [Photo provided by Inner Mongolia Tourism]

With an average temperature of 19℃, the Sumu Mountain scenic area in Ulaanqab, North China's Inner Mongolia autonomous region, is a popular resort for tourists to escape the summer heat. [Photo provided by Inner Mongolia Tourism]

With an average temperature of 19℃, the Sumu Mountain scenic area in Ulaanqab, North China's Inner Mongolia autonomous region, is a popular resort for tourists to escape the summer heat. [Photo provided by Inner Mongolia Tourism]