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Longshore Bars. Many low ridges are formed by surfs parallel to the coast. These are usually submerged under the sea. The coastal bars, which do not submerge even under high tides, are known as longshore barriers. Some call them off shore bars. The longshore bars have many names.

When these bars reach the coast, they are known as sounds. There are many sounds near Miami (Florida). Spits. At many places, a bar consisting of pebbles, stones and sands protrudes out of a headland. Its one end disappears in the open sea. If the bar is submerged under sea, it is called Spit but if it appears above the sea, it is known as barrier.

Hook. The current, which dumps sediment at the free ends of spits, extends the spit towards the sea. Other currents and waves tend to turn it into other directions. If the current extending it is weaker than the currents turning it, the bar takes a turn. Such bars whose ends have bent are called hooks. Sandy Hook of New Jersey (USA) is a well-known hook.

Loop. Sometimes the end of a hook bends in such a way that it forms a loop. Such hooks, which have turned into a loop, are called Loops.

Bay Mouth Bar. When the bar at the mouth of a bay becomes so large that it closes it, it is called Bay mouth bar. The bay mouth bar of Ontario Lake is a famous one.

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