Relatively modest numbers of neatly edged holes appear in sand above the current strandline, apparently produced by / the homes of / small creatures of uniform size. What creatures?
No identification made yet.
No interactions present.
This one looks like something living in the sand.
Mark it 'marine' & you may get more responses.
Lat/Lng: 55.57125, -1.64473
OS grid ref: NU225308
Not confined to any one location.