A clan of what are commonly called Inukshuk watch over the beach at Goderich.
I did a little research. It seems, according to The Canadian Encyclopedia, that each individual construction in this photo is more properly called inunnguaq – ‘in the likeness of a human’ – because it mimics human form, whereas the term inukshuk or inuksuk refers to ‘a figure made of piled stones or boulders constructed to communicate with humans throughout the Arctic’.
This construction has occurred almost spontaneously. You might call it ‘spontaneous construction’.