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.