How does sandbars form?

Sandbars form through the accumulation of sand and sediment in shallow water, typically along Coastlines or riverbeds. As waves, currents, and tides transport sediment, they deposit it in areas where water flow slows down, such as behind a breakwater or in the wake of an obstacle. Over time, these deposits build up to create raised, sandy structures above the water's surface during low tide. Environmental factors like wind and water dynamics also influence the shape and location of sandbars.