Children from Guangdong, Hong Kong, Macao and Taiwan board a train at Shenzhen Railway Station to embark on a cultural trip on the Chinese mainland Monday morning. They will visit a number of cities including Chengdu, Xining and Beijing in the 13-day trip. This is the eighth year the activity has been held, which aims at enhancing friendship of the four regions and enriching their knowledge of the country’s history and traditional culture. Cheng Haikun