It was a big day in McLaren Park– warm and sunny – perfect for parents and grandparents to enjoy the magic combination of children and trucks. The Park and Recreation Department’s second annual Big Truck Day, on Oct. 10, drew more than 400 children and nearly as many parents and grandparents. Beeps, hums and roars filled the air. Kids and adults had the opportunity to sit in the driver’s seat of all kinds of trucks: fire, garbage and recreation department trucks. A Public Library bookmobile was stocked with picture books on transportation. The tennis court had been converted to a proving course for child-sized cars and trucks. Nearby, children loaded sawdust into toy dump trucks, sat enthralled listening to stories of trucks, colored and engaged in other creative activities.