The agitation of sea water, especially when it contains a high degree of dissolved organic material creates foam on the shoreline. The beach is transformed from its normal state (sand, shingles etc) into all covering expanse of tiny bubbles.
The agitation of sea water, especially when it contains a high degree of dissolved organic material creates foam on the shoreline. The beach is transformed from its normal state (sand, shingles etc) into all covering expanse of tiny bubbles.