5 ms·
They also look very recent. The sand hasn't filled them back in.
by reactspa 4y ago
They also look very recent. The sand hasn't filled them back in.
- everforward 4y agoI don't think there's much water movement that deep, so they may not fill back in like we'd expect. I think there's almost no current down that far, and marine life that would knock them over are scarce.