Mother nature amazing energy transformation process.
Somewhere around the equator, the ocean water evaporates because of the heat of the sun. In the atmosphere, thru an extremely complicated process, it contributes to form storms. The low pressure in their center creates extreme force winds that agitate the waters of the north west Pacific ocean. Then the waves travel a long distance towards Hawaii (if we're lucky). And then finally this one hits the reef at Jaws. Tons of water are lifted up a few tens of feet and then thrown down when the wave breaks. Part of it gets vaporized, part creates massive amounts of white water that tumble up to the rocks. The energy is given back to the ocean and the journey is over.
Few brave windsurfers particularly enjoyed it.