Agor Drysau - Opening Doors festival has finished for another year. Thanks to all of the people that came to see performances, to the volunteers, to the staff of Arad goch and to our sponsors. Agor Drysau - Opening Doors will return. Agor Drysau – Opening Doors is Wales’ International Festival of Performing Arts for Young Audiences, which is organised every two years by Arad Goch. The Festival provides children, young people and families in Wales with the opportunity to experience some of the best international performances, as well as providing Welsh performers with the opportunity to showcase the wealth of artistic talents we have here in Wales to an International audience.