A cider bowl is passed around and animal bone costumes dance a jig as a crowd wishes good health to apple trees. It’s a pre-Christian tradition in the UK known as wassailing, which is enjoying something of a revival: "I think there's a big movement at the minute… to reclaim some of the lost pagan histories that are around," says Cordelia Roberts, a participant at an urban wassail in the east London suburb of Hackney. IMAGES AND SOUNDBITES