Caption: Champions Macy Callaghan and Ethan Ewing with runner-up Mahina Maeda and Griffin Colapinto. Pic: WSL/Cestari Bombo Beach Kiama, NSW/AUS (Friday, January 6, 2017) – Australian duo Ethan Ewing and Macy Callaghan have capped off their stellar competitive seasons, taking out the World Junior Championship (WJC) in Kiama, NSW. Conditions were not ideal but the world’s …