A swamp is a type of wetland ecosystem. Swamps are forested, low, spongy land generally saturated with water and covered with trees and aquatic plants. Big parts of swamps are often flooded with water. Swamps are nesting and breeding grounds for birds and other animals.
The water of a swamp may be fresh water, brackish water, or seawater. Freshwater swamps form along large rivers or lakes.Saltwater swamps are found along tropical and subtropical coastlines.