A channel is a narrow body of water that connects two larger bodies of water, such as seas, lakes, or rivers. Channels can be natural, formed by geological processes, or artificial, created by human engineering to facilitate navigation and transportation. They often serve as important routes for ships and boats. Channels can vary in size and depth, influencing the types of vessels that can navigate them. Some well-known channels include the English Channel, which separates England from France, and the Panama Canal, an artificial waterway that connects the Atlantic and Pacific Oceans.