River dam introduction: The river dam here does not refer to the cofferdam, but to the creek beach, and the back beach dam is very vast. Some people say 300 acres, some say 200 acres, there is no definite number. Indeed, when the spring water overflows, the entire creek beach disappears in the waves. When autumn comes, the red leaves on both sides of the river bank cover the mountains. When you are on the creek beach, it is so vast that it is scary. In my childhood memories, endless reed flowers swayed in the wind, and a huge "swish" sound sounded in my ears. I don't know which reed leaf the friction sound came from, let alone which direction it came from. On the side of the stream, there are patches of eucalyptus trees growing. The strong smell, which is not fragrant but fragrant, floats over the hillside and across the stream, so the whole Oujiang River is filled with this refreshing fragrance.