About the Bays
Delaware’s Inland Bays consist of three interconnected bodies of water in southeastern Sussex County: Indian River Bay, Little Assawoman Bay, and Rehoboth Bay.
The bays and their tributaries cover about 32 square miles and drain a land mass -called the “watershed”- of about 320 square miles. The Inland Bays are shallow, with an average depth ranging from 3 to 8 feet.
Because the bays are so shallow, and because they are poorly flushed by tidal movement, they are especially sensitive to environmental changes. Increases in pollutants, changes in salinity and fluctuations in water temperature, for example, can have dramatic effects on water quality and on the plants, fish, shellfish, and microscopic creatures that live in the bays.














