Long Ya Men in the map was also used to refer to the strait between Sentosa island and Labrador Point, and named after a pinnacle of stone that was called Batu Berlayar, which means "Sail Rock" in Malay. Another suggestion is that it refers to the Singapore Main Strait south of Pulau Satumu.
Long Ya Men on the map referred to the strait between Sentosa island and Labrador Point, named after a stone pinnacle called Batu Berlayar, meaning "Sail Rock" in Malay. Another suggestion is that it refers to the Singapore Main Strait located south of Pulau Satumu.