The Dragon's Teeth Gate or Longyamen was a rock at Keppel Habour. The rock help ships navigate the straits between Sentosa Island and Labrador. The Dragon's Teeth Gate is believed to have helped Admiral Zheng He sail around Singapore waters in all his 7 voyages.
The Dragon's Teeth Gate was destroyed by the British in 1848 to widen the channel. The Singapore governemnt erected a replica at the original site in 2005 to mark the 600th anniversay of Admiral Zheng He's voyages.
