Content cannot be displayed without consent First posted on TikTok by Alice James - @alicekjames - this optical illusion of footprints in the sand sent a lot of people spinning. For some people ...

The footprints - 61 in total - were found at what was a lakeshore. "People walked on a mosaic of wet and dry ground. There was mud, silt and sand in this lake-edge environment," Pigati said.