Since the beginning of the Bay, reed beds having been spreading over an area of approximately 10 square kilometers, taking more than 30 years to develop.

Within the past 10 years reed growth has increased dramatically. In other parts of Korea reed beds have been decimated but the reeds of Suncheon Bay have been well preserved.

Phragmites Communis (The Common Reed) acts as an outstanding water purification system and has created an ideal environment for the Boleophthalmus Pectinirostris (The Mudskipper), a fish very sensitive to pollution. The reed beds also act as a natural sanitation facility for the Bay as well as support in the control of flooding.

The reed beds further protect some fish species against the cold. This in exchange attracts fish-eating birds that inhibit the Bay.