Is cape cod and bay the same?

Cape Cod and the Cape Cod Bay are not the same. Cape Cod is a peninsula located in Massachusetts, while Cape Cod Bay is the body of water that borders the peninsula. Cape Cod Bay is part of the Atlantic Ocean and is located between Cape Cod and the mainland of Massachusetts. The bay is about 15 miles wide and 25 miles long. Cape Cod is about 65 miles long and 20 miles wide.