The Eems-Dollard is a large, dynamic tidal estuary situated on the border between the Netherlands and Germany, forming a significant part of the Wadden Sea World Heritage site. This brackish water system is characterized by extensive mudflats, salt marshes, and a complex network of tidal channels. The waters are known for their high turbidity, a condition that has intensified over time due to historical changes in the system's morphology and sediment dynamics. The estuary represents a critical habitat where freshwater from the Ems River mixes with the saline waters of the North Sea, creating a rich and productive environment for marine life.