A lake is a large body of freshwater surrounded by land. It can be found in various sizes, from small ponds to vast expanses that cover many square miles. Lakes are often formed by natural processes, such as glaciers, rivers, or volcanic activity. They provide habitats for many plants and animals, making them important ecosystems. People enjoy visiting lakes for various activities, such as swimming, fishing, and boating. Lakes also serve as a source of drinking water for nearby communities. Some famous lakes, like Lake Superior and Lake Baikal, are known for their beauty and unique features, attracting tourists from around the world.