During the Christmas holiday, 22 students, three teachers and two social workers of Baptist Lui Ming Choi Secondary School went to the Nanshan district of Shenzhen city.
The trip was organised by the Organisation of Caring for the Next Generation in China. During the four-day trip, the group visited four families in Haiwan New Village and Xili Village and four secondary schools - C M Shekou Industrial Zone Yucai Middle School, Nanshan Bo Lun Vocational Technical School, Xili High School and Nantau High School.
They also went to the China Folk Culture Village, Qing Qing Resort Park, Nanshan Public Libraries, Book Centre and the construction site of a road which is planned to link up Yuen Long and Shekou.
The students enjoyed the visits to the secondary schools most. At every school they went to, they were given time to talk to the students.
They talked about their school lives and their families and shared their feelings for their country. Some even debated whether capitalism or socialism was better.
May Lam said: 'The student I spoke to surprised me because she showed a stubborn attitude towards the Chinese Government. She trusts what it does and what it says from the bottom of her heart. However, many others hold a different attitude. They would criticise the Government.
'I used to think that few people in mainland China would be open-minded to the weaknesses of the Government.' Hong Kong students discovered mainland students' written and spoken Chinese tended to be better than theirs.