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They were bodysurfers with swim fins.
In any case, part of the fatalities, which ran into problems at the Northern Harbor Head in Scheveningen on Monday evening, were themselves experienced rescue swimmer.
The group had taken to the sea with a bodyboard to exercise in tough conditions, an insider says.
"They often train in these types of conditions," said the kite surfer. "They were the fire brigade of the sea. They were the very best in the Netherlands. It is very sad that they were taken by the sea themselves during a training. "
The five surfers who lost their lives at Scheveningen may have been in trouble due to a thick layer of sea foam. According to Louis Peperzak, a researcher at the Royal Netherlands Institute for Sea Research (NIOZ) on Texel, it is not yet known that sea foam could possibly be dangerous. "No, I have never heard of that," says Peperzak when asked whether people have ever been suffocated in a high layer of floating sea foam. "Not even in marine mammals." "This foam or ‘Cappuccino coast’ is typically formed in May," says Perperzak. “This is due to a degradation product of the algae Phaeocystis, which grows in April and early May. When the seawater with that breakdown product is whipped by the turbulence of the waves, foam is created. With more wind, north and west wind, even more foam can be created because there is more turbulence. ” The layer of sea foam that would have caused problems for surfers at the Noordelijk Havenhoofd near Scheveningen would have been a meter thick. That is no exception, according to Peperzak. “The substance can be compared to beer foam, also a bit sticky. It consists largely of air and becomes liquid again over time. Sea foam is mainly formed along the coast. “Because there is branding, there is more turbulence. There is also more pollution from nitrogen and phosphate near the coast, which means that Phaeocystis grows better and there is therefore more degradation product. ” Peperzak emphasizes once again that the foam is not known to endanger people and animals. “There is no research to indicate this. Nor that it would be toxic. ”
Last edited by Huib
on Tue May 12, 2020 1:14 pm, edited 1 time in total.