Mystery ‘debris balls’ return to NSW beaches as residents warned to steer clear Central Coast council says residents should not touch the balls and avoid beaches where they wash ashore Debris balls have again washed up along the New South Wales coast as officials warn residents not to touch the mysterious spherical globules and to avoid beaches where they appear. Central Coast council said on Thursday the debris balls – which are grey and about 10mm to 40mm in size – had been found on beaches including at The Entrance, the Grant McBride baths, Blue Bay, Toowoon Bay, North Shelly,...