An ocean wave is a disturbance in the surface of the ocean, typically caused by wind. Waves can vary in size and shape, depending on factors like wind speed, duration, and the distance over which the wind blows. They play a crucial role in coastal processes and can influence marine ecosystems. Waves are characterized by their height, wavelength, and frequency. The height is the distance from the trough (lowest point) to the crest (highest point). When waves approach the shore, they can break, creating surf, which is important for activities like surfing and beach recreation.