The sound of a motorboat is usually a strong and energetic sound, often described as a "bump-bump" or "rumble-rumble" sound. This is a result of the power of the motorboat's engine and the movement of the water under the boat. This sound is often heard when a motorboat moves quickly on the water, demonstrating the power and speed of that vehicle. For many people, the sound of a motorboat is a symbol of adventure and excitement at sea.