Accretion causes the beach to become wider.
Opposite of erosion. Armoring structures include seawalls, revetments, bulkheads, and rip rap. The seaward return flow of swash on the beach face due to gravity. BAR Submerged mound of sand that generally runs parallel to the shore and causes waves to break before reaching the beach. A low-lying, sandy island or spit that lies offshore and generally parallel to the mainland.