This is the Wave Rock (Rock Ola) in Australia. Believed to be one of the oldest rocks on Earth, with million years. Its distinctive shape is caused by erosion of 60 million years. Photo: Getty Images rocks-minerals-gems-and-geology
previous pinner wrote: "Teach kids aboriginal art symbols, and have kids paint aboriginal art symbols on a set of stones to use to play tic tac toe (also called "ngaka ngaka", which means "look look").