"People need space, but there's so much noise in the city," added the 36-year-old devotee of Buddhism and Zen.
"These social events are important catalysts," said Ng Mee-kam, a professor of urban studies at the Chinese University of Hong Kong.
"He was quite amazed and asked me whether we young people can really survive on dreams," added Yu, whose workshop, tucked behind a bed in his studio flat, is about 100 sq.
"My dream is just a wall away from me," added Yu, who works freelance in corporate communications and sometimes goes kayaking with Chan, a good friend.
"After moving to Peng Chau, I realised I don't need to emigrate anymore," Chan said.