Introduction to Longwan: In the northeast of Langyatai, there is a vast bay with a water area of 66 square kilometers. The mouth of the bay is between the mouth of Dazhu Mountain on the east coast and Zhaitang Island in front of Langyatai. This is Longwan. Standing at Langyatai and looking at Longwan, Lunlun Mountain to the north, Dazhu Mountain and Lingshan Island to the east are like a cluster of fairy mountains; the beach on the west coast is like two connected golden crescent moons falling from the sky. Longwan is a picture scroll of ancient platforms, fairy mountains, fairy islands and crescent-shaped beaches inlaid with vast blue waves and silver waves. Whenever the southeast wind reaches level 5 or above, there will be a galloping gathering of silver dragons in Longwan, which is very spectacular. This is the wonder of the famous Langyatai dragon.