In Oxford, it is a centuries-old tradition for May Morning revellers to gather below the Great Tower of Magdalen College at 6am to listen to the college choir sing traditional madrigals as a conclusion to the previous night's celebrations. Since the 1980s some people then jump off Magdalen Bridge into the River Cherwell. For some years, the bridge has been closed on 1 May to prevent people from jumping, as the water under the bridge is only deep and jumping from the bridge has resulted in serious injury in the past. There are still people who climb the barriers and leap into the water, causing themselves injury.