A girl plays in a bubble pool at a kindergarten in Guang’an, Southwest China’s Sichuan province, on Monday. Photo: VCG

Kids play with water guns on Monday in Guang’an. Photo: VCG

Kids attend a walking bike challenge on Sunday in Handan, North China’s Hebei province. Photo: VCG

Kids wear national costumes to celebrate International Children’s Day on Monday in Bijie, Southwest China’s Guizhou province. Photo: VCG

Kids compete in a tug-of-war on Monday in Congjiang County, Southwest China’s Guizhou province. Photo: VCG

A resident plays with her child at an event to mark the International Children’s Day on Monday in Congjiang County. Photo: VCG

Parents participate in a game with their kids on Sunday at a kindergarten in Lianyungang, East China’s Jiangsu province. Photo: VCG

Kids pose for a group photo with paper aircraft to celebrate the day on Sunday in Huai’an, East China’s Jiangsu province. Photo: VCG

Children climb on an indoor rock climbing wall on Sunday in Shanghai. Photo: VCG