
Eve sent these two photos taken during Friday’s low-low tide, wondering if anyone knows what they are – the first, she said, looked “like plastic” but clearly wasn’t (we also recall seeing the formation in another low-tide photo we had received but not published); the next, she said, looked almost “like red tide”:

Thanks in advance, beach expert(s) who will solve the mystery!
10:24 PM UPDATE: Thanks to everyone who has solved the FIRST mystery in the comment section – second one is still a open case.
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