Sounds of the Sea
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.
The shore at Cley-nest-the-Sea, Norfolk, UK is flat and marshy, so the breakers fall dead rather than running.