A human-made seawall of riprap rock helps to prevent dune erosion

A human-made seawall of riprap rock exposed by dune erosion. Small seawalls are created using large rocks (riprap) at the dune toe to fortify the dune, reduce dune erosion from elevated water levels and storms, and help to protect property. Over time, these seawalls may become covered by natural dune growth, but high-water events could re-expose them.