A powerful, often dangerous wave that breaks directly onto the beach in very shallow water, slamming swimmers and riders into the sand.
Shore dump (or shorebreak) is one of the most underestimated hazards at the beach. It occurs when waves arrive at a steeply shelving beach and have no room to break gradually — instead, they jack up and slam directly onto the sand in water that's only knee- to waist-deep. The force can be extreme: shore dump has caused serious spinal injuries, broken bones, and even fatalities.
It's particularly dangerous because it happens where people feel safest — right at the water's edge. For watersports riders, shore dump makes launching and landing treacherous. Kitesurfers launching in shore dump risk being slammed while their kite is not yet fully powered.
Surfers entering the water face being thrown back onto the sand. The telltale signs are waves that rear up suddenly right at the shoreline and a steep drop-off at the water's edge. When shore dump is present, enter and exit the water with extreme caution, ideally at a spot with a more gradual entry.
Example usage
"Nasty shore dump today — saw two people get slammed just walking in. We launched the kites from the rocks around the corner instead."
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