At the age of five, Wong started learning Hung Ga from his father, Wong Kei-ying. He often accompanied his father on trips from Foshan to Guangzhou, the provincial capital of Guangdong Province, where his father peddled medicine and performed martial arts in the streets. When he was 13, he encountered Lam Fuk-sing (林福成; Lin Fucheng), an apprentice of "Iron Bridge Three" Leung Kwan, in Douchi Street in Foshan Town.