The cave is famously associated with the legendary pirate Cheung Po Tsai, who was active in the Pearl River Delta region during the early 19th century. Cheung Po Tsai, whose name means ‘Cheung the Kid’, became one of the most notorious pirates in the South China Sea, commanding a formidable fleet and amassing great wealth. The cave on Cheung Chau Island is believed to have been one of Cheung Po Tsai’s hideouts where he stored his treasure and evaded capture.