Underwater vehicles, also known as underwater drones or submersibles, are machines designed to operate beneath the surface of the water. They can be remotely operated or autonomous, allowing them to explore oceans, lakes, and rivers. These vehicles are equipped with cameras and sensors to collect data, making them useful for scientific research, environmental monitoring, and underwater exploration. There are two main types of underwater vehicles: ROVs (Remotely Operated Vehicles) and AUVs (Autonomous Underwater Vehicles). ROVs are controlled by operators from a surface vessel, while AUVs navigate independently using pre-programmed routes. Both types play crucial roles in marine biology, archaeology, and underwater engineering.