Rich mangrove ecosystems and numerous species of fish， shrimp， mussels， oysters， and crabs， including bivalve molluscs like the Chinese Venus， are found in the estuary， which is filled with predominantly brackish water. Healthy and diversified ecosystems are the most precious asset of Cigu Lagoon; what makes the lagoon really unique however， is its combination of fishery， evident in the preponderance of seines and oyster racks， and thriving coastal ecosystems inhabited by diverse animal and plant species. Looking out from the Seascape Pavilion near the lagoon， you can take in views of sandbars， lagoons， and salt pan s in the enchanting sunset.