Beach building – Banks and Bars

The beach being slowly rebuilt as the sand laden waves break on to the banks of seaweed. The continual reworking of the material allows sand bars to form with a back lagoon and channels, raising the beach profile.

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Sand lobes progress across the sea weed / grass banks.

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Waves pushing water over the sand banks into the lagoon.

 

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Formation of sand banks with channels

 

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Channel forming with water rushing back to the sea creating a small rip.

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