Introduction to the tidal lagoon: The tidal lagoon is a natural lagoon-style harbor that uses the rising and ebbing tides of the sea. It has a water area of ​​about 4 square kilometers, a coastline of 12 kilometers along the lake, and a water depth of 2 meters. It is by far the largest inland lake in China. Natural tidal lake on land. When the tide rises, the sea water surges into the lake area; when the tide goes out, the gates are closed and the lake surface is as calm as a mirror. Above the lake, there are blue sky, white clouds and gulls flying. Whenever the morning sun first appears or the sunset glow first shines, the vast lake surface reflects the rays of sunlight, and the sky and water are of the same color, graceful and poetic.