Someone's taking pictures of each stone in Toronto's Rock Snake and they look incredible Stay in the loop Sign up for our free email newsletter. Unsubscribe anytime or contact us for details. A simple idea by a seven-year-old has grown into a 1,700-foot stone snake, easily Toronto's longest lineup of painted rocks ever. Ever since Lucas Walker placed four painted rocks next to the Kew Beach boardwalk over a month ago and set up a painted sign encouraging others to join in, thousands more have been added by the community. Seven-year-old Lucas Walker started the rock snake over a month ago at the Kew Beach boardwalk.