A 50-year-old Hong Kong woman who travelled alone to Guangzhou and wandered the streets for several days returned home last night with the help of a Hong Kong trade union association and the Immigration Department. Lo Gui-lin - who lives with her husband in Lai King Estate, Kowloon, and has two sons and a daughter - was transferred to Northern District Hospital for a check-up. Ms Lo said yesterday that she suffered no illness and had never been to hospital before. So Man-hing from the Hong Kong Federation of Trade Unions said Ms Lo had wandered the streets of Guangzhou for at least two days and had been housed in a police station for two days after she was found. The woman said she left home for a recreational trip to the mainland, entering Shenzhen through the Lowu checkpoint on Saturday and taking a bus to Guangzhou later that day. With just $1,000 in her bag, she said she kept walking the streets but later discarded the bag because she was 'too tired'. She had about 300 yuan left when found by the police. 'I don't know this city and just kept walking around. I bought takeaway food when I got hungry and slept on street corners at night,' she said. Ms Lo said she had been taken to the police station on Tuesday night but did not say why she had not simply returned to Hong Kong by herself. Mr So said the federation and Immigration Department staff contacted Ms Lo's elder son on Wednesday night but the son said he did not know about his mother's disappearance and refused to go to Guangzhou to pick her up. 'He even said that it was none of his business and suggested we contact his father,' Mr So said. Ms Lo said her husband had been laid off many years ago and they had lived on social security for nearly 20 years.