Sounds of the Sea
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The salt mashes at Bradwell on Sea, Essex, UK run right down to just below the high water line, so at high tide there is a strong turbulent flow as the sea laps among vegetation over the mud flats.
High tide at Birling Gap, Sussex, UK around 2 am. The beach is water-worn chalk partly covered by a layer of shingle, and is very flat. So the tide comes in fast and there is little to absorb the energy of huge breakers at high tide.
Incoming Tide, Cley-next-the-Sea
The shore at Cley-nest-the-Sea, Norfolk, UK is flat and marshy, so the breakers fall dead rather than running.