Coastal bays are bodies of water partially enclosed by land, typically found along coastlines. They are often characterized by calm waters and can serve as important habitats for various marine life, including fish and birds. These areas are influenced by tides and can vary in size from small inlets to large estuaries. Bays play a crucial role in the ecosystem, providing shelter for wildlife and serving as nurseries for young fish. They also offer recreational opportunities for activities like boating and fishing. Coastal bays can be affected by human activities, such as pollution and development, which can impact their health and biodiversity.