This is the second sunset of a 3 day gale from 2012. Quicksand is formed during gales. Look at the bottom of this photo and you can see the wind and waves conspiring to mix up a new batch.It’s not the waves alone but the one two punch of the wind kicking up the sand and driving the water higher up on the beach that does it. I guess East Coaster’s would call this the ‘storm surge’. In any event that is a boot sucking hold you floundering in place until the next high wave set can grab you and drag you out to sea patch of quicksand.
Nature is awesome indeed.