This may sound like a strange activity!
And you would be right, but this is an essential part of the mosaic process… finding the perfect substrate. It is not usual to pick up a rock from the outdoors, particularly one that is of a good shape and would be good for a mosaic. So, we come to either a landscape supplier or Stone and Water World in Marua Road.
Basker is the one who shifts rocks for me to find the smoothest and most pretty.