The latest craze to rock Canterbury has thousands of children and their parents scouring the region for colourful stones hidden in obscure places.
The idea came out of Palmerston North to the South Island thanks to Louise Waho.
"I started it because I could see the potential of actually children doing something other than being in front of a TV," she said.
"It got people out meeting each other and actually saying 'it's not weird to pick up a rock and go oh i can keep it;' or give to someone that you love, or do it as a present. It doesn't have to be expensive"
The old fashioned idea has captured kids as a new craze.
Newshub's Erin Speedy went on the hunt.
Watch the video above.