Introduction to the reed marsh: The reed marsh in the Dinghu Bay Scenic Area covers an area of ​​about 5.7 square kilometers. It begins to turn green in April every year, and is the most lush season from May to October. The reeds are about 3-4 meters tall and begin to wither in December. Mixed with Malan, the mossed color of Malan is brownish red and can be used as health pillow core.