South Moolack Beach right after the storms, courtesy Laurie Neary. Although foam on the beach can be a fun thing for children to play in, here’s a few points from Wikipedia that may give you pause:
“Where polluted stormwater from rivers or drains discharges to the coast, sea foam formed on adjacent beaches can be polluted with viruses and other contaminants, and may have an unpleasant odor. Prolonged periods of heavy surf can churn up pollution and other organics that have been deposited over time just offshore.
“If crude oil discharged from tankers at sea, or motor oil, sewage and detergents from polluted stormwater are present, the resulting sea foam is even more persistent, and can have a chocolate mousse texture.
“If the foam forms from the breakdown of a harmful algal bloom (including those caused by some dinoflagellates and cyanobacteria), direct contact with the foam, or inhalation of aerosols derived the foam as it dries, can cause skin irritations or other respiratory discomfort.”