A bar is a ridge of sand or single that joins two headlands either side of a bay.

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A spit is an extended stretch of beach material that sticks out to sea and is joined to the mainland at one end.

Aerial view of Spurn Point from the mouth of the Humber Estuary

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A sandy beach is usually formed in a sheltered bays, where low energy, constructive waves transport material onto the shore.

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Beaches, sand dunes, spits and bars.

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A sand dune is a small ridge or hill of sand found at the top of a beach, above the reach of the waves.

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