UNLIKE most of the 757 candidates, Lamma Island District Board candidate Chan Wai-man travels by boat to canvass votes. Mr Chan, 55, who lives on the northern part of the island, said he took a speedboat to six villages on the southern part to seek votes. ''It is much quicker and more convenient to go by boat,'' he said. But his rival, Fong Kam-hung, 56, prefers to walk. He said it took at least an hour to walk from Yung Shue Wan to Sok Kwu Wan and he had done that sever-al times in the past few weeks. Mr Fong said he usually started his campaigning after sunset because it was too hot to walk during the day. Both Mr Fong and Mr Chan are indigenous villagers of Lamma. They know each other well and were friends at the only school on the island, the North Lamma School. Both said they would focus their campaigns on indigenous villagers, who make up the bulk of the 2,600 voters in the constituency. But Mr Chan, who is an independent candidate, said he would also try to get foreigners' votes. He said the island had a growing population of expatriates but most had been in Hong Kong for less than seven years and therefore were not eligible to vote. He said the number of expatriate voters would be about 100. To get their support, he has engaged his daughter as his interpreter. ''Many expatriates are more concerned about next month's elections than the indigenous villagers,'' he said. But Mr Fong, who is supported by the pro-China Hong Kong Grazier Union, said he could not find anyone to be his interpreter. He was looking for help to put up an English banner. ''That's all I can do,'' he said.