Dear 100 Hour Board,
I recently visited a beach, an uncommon occurrence for a land-dweller such as myself, and noticed a strange thing! Every few seconds, at unpredictable intervals and unpredictable distances from one another, a tiny spurt of water would jet up and inch or two from under the sand. My first thought was that this had to do with some type of animal life? And indeed at a closer look I did see quite a few crabs and some of them did seem to be burrowing themselves into the sand, but when I watched the spot where one disappeared into the sand, I didn't notice any of the little spurts coming from that spot.
Any idea what was going on??
It was low tide and the beach was at a fairly calm inlet of a bay, if that makes any difference.
Apparently clams do this, geoducks in particular. Some sources say that ghost shrimp do as well, but I couldn't find any footage or particularly credible sources. It could be either of those two things or something else entirely. Do you have any specifics on where the beach was? That might help narrow it down.