Joshua Wigley, the 14 year old son of Eden WaterWise Instructor Liza, was interested by the question … How are waves formed? … and did some research. This is how he explained it:
It is the energy in the wind that makes the water in the ocean move; this is also what creates waves. It is gravitational pull of the sun and moon that changes the tides. The ocean floor (sand) also moves. The water moves the sand.