80 events took place over the course of the campaign to help tidy the Welsh coastline ahead of the summer   Local residents and staff from the local McDonald’s restaurant in Longwood Drive took part in a clean-up event in Cardiff to help support the fourth annual Clean Coast Week, sponsored by McDonald’s.   25 volunteers from the local area and McDonald’s joined forces to help clear unwanted litter from Parc Tredelarch to help get the stretch of coastline looking…