Every two years Derrywash NS puts on a public performance in the Linenhall Theatre, Castlebar. All the children from Third to Sixth participate in the stage performance. With professional stage, sound, lights and music, it all adds up to a very exciting and eagerly awaited event. Hard work and great fun for all involved. "Mary Poppins" was last years performance. Past performances include 'Matilda', 'Shrek the Musical', 'Oliver', 'Annie', 'Joseph and his Amazing Technicolour Dreamcoat', 'High School Musical' and 'The Sound of Music'.