FOR Jonathan Yau, and many of his fellow drivers in this weekend's Hong Kong-Guangzhou disabled drivers' rally, it will be his first visit to China. The former watchmaker, now working at the Hong Kong Federation of Handicapped Youth, had polio when he was four, and since then has been unable to walk unaided. But with his wheelchair and specially adapted car, Jonathan says he has a relatively independent and full life - which is more than can be said for the millions of disabled people across the border who are forbidden to hold a driving licence. Jonathan said he was looking forward to the weekend jaunt, in which 60 disabled drivers would tour Guangdong province, carrying a total of 120 passengers, 15 of whom would be disabled people from China. ''The main problem will be the toilet facilities: China is not at all prepared for disabled people, and I think people underestimate how important it is to have special bathroom facilities if you are in a wheelchair.'' Karen Mak, who also had polio as a child, has been to China a few times before, ''although, of course, I have never driven there - I would not have been allowed''. She said on previous occasions she had felt people were unfriendly or wary of her because she was disabled, although she believed that this charity drive would be different. ''We are going as guests of Guangdong province, and we hope it will also give us the chance to show that disabled people can drive - well and safely - and should be given the human right to own and drive their own car.'' A charity hotline will be set up during the charity drive period between January 1 and 3. Tel: 337 9311.