皇后碼頭
Choy is an ardent supporter of environmental issues. She notably broke ranks with her party to vote with conservationists for the preservation of Queen's Pier. She joined democrats to oppose application for HK$50 million to fund the dismantling and relocating of the pier on 9 May 2007. Choy, however, abstained in a re-submitted request for funds to dismantle and relocate Queen's Pier two weeks later. She revealed that she had been lobbied by Michael Suen and Donald Tsang; party whips did not allow her to cast an opposing vote, and the government won by 10-7.