Greenbelt is a festival of arts, faith and justice. The best you’ve never heard of. Greenbelt saw its first edition way back in 1974 and has hosted its annual festival every single year since. But thinking of Greenbelt as just another ‘festival’ doesn’t do it justice. It is also an idea, a way of seeing, a gathering of the clans – part movement, part moment. Its genius is that it defies easy description. You have to be there.