So every year at the Great Salt Lake here in Utah this happens. And like clockwork this article is always released. I actually enjoy going and looking at them. But It does still give me the heebeegeebees!
https://www.ksl.com/?sid=46367206&nid=148&title=spiders-blanket-shoreline-at-great-salt-lake-marina
https://www.ksl.com/?sid=46367206&nid=148&title=spiders-blanket-shoreline-at-great-salt-lake-marina