A lagoon is a shallow body of water that is separated from a larger body of water, like an ocean or sea, by a barrier such as a sandbar or coral reef. These calm waters are often found along coastlines and can be home to a variety of plants and animals. Lagoons provide a unique ecosystem that supports fish, birds, and other wildlife, making them important for biodiversity. Many lagoons are also popular destinations for recreational activities like swimming, kayaking, and birdwatching. They can be found in beautiful locations around the world, such as the Great Barrier Reef in Australia or the Venetian Lagoon in Italy. These serene environments attract visitors who enjoy their natural beauty and tranquility.