Underwater Boat Engine Startup and Shutdown

This underwater recording captures the ambient sounds of a boat's engine starting up and shutting down. The audio begins with the subtle hum of the engine starting, followed by the increasing roar as it powers up. The sound of water movement around the boat is also present, creating a realistic underwater ambiance. As the engine shuts down, the roar fades into a gentle hum before silence returns. This sound can be used in films, games, or any media that requires an authentic underwater boat engine sequence.