GoodGym was on hand to marshall at the Caledonian Clock Tower Junior ParkRun, whish gets kids in the local community having fun while getting all the health benefits of exercising. My task was to marshall in the middle of the run, where youngsters run between rose bushes and then back along the same path. I was also required to lay out cones to separate the path into "out" and "back" lanes. Unfortunately I put the cones on an extended part of the path, too near the gate. Luckily an experienced Caldedonian Junior ParkRunner, arriving ahead of the rest as usual, pointed out my mistake, which I hastily corrected before the others arrived