▁hours ▁from ▁around ▁ 6 . 1 5 am ▁on wards . ▁There ▁is ▁a ▁party ▁atmosphere , ▁despite ▁the ▁early ▁hour . ▁In ▁fact , ▁in ▁some ▁years ▁there ▁are ▁all - night ▁balls ▁the ▁night ▁before , ▁so ▁some ▁people , ▁especially ▁students , ▁are ▁in ▁formal ▁att ire . ▁ ▁There ▁is ▁a ▁modern ▁tradition ▁of ▁students ▁jump ing ▁from ▁Mag d alen ▁Bridge . ▁This ▁occurred ▁sp or ad ically ▁in ▁the ▁ 1 9 6 0 s , ▁becoming ▁an ▁annual ▁event ▁by ▁the ▁ 1 9 8 0 s . ▁However ▁the ▁river ▁is ▁sometimes ▁shall ow , ▁which ▁has ▁on ▁occasion ▁caused ▁serious ▁injury , ▁not ably ▁in ▁ 1 9 9 7 ▁when ▁one ▁person ▁was ▁left ▁par al yz ed , ▁and ▁ 2 0 0 5 ▁when ▁ten ▁were ▁hospital ised . ▁Hence ▁the ▁bridge ▁was ▁closed ▁every ▁May ▁Mor ning ▁ 1 9 9 8 - 2 0 0 1 ▁and ▁ 2 0 0 6 - 2 0 0 9 . ▁ ▁In ▁the ▁ 1 9 th ▁century , ▁the ▁young ▁towns men ▁ble w ▁horn s ▁and ▁ran ▁ri ot , ▁after ▁the ▁singing . ▁Activ ities ▁have ▁varied ▁over ▁the ▁previous ▁centuries . ▁ ▁V era ▁Brit tain ▁wrote ▁a ▁poem ▁with ▁the ▁title ▁May ▁Mor ning ▁in ▁ 1 9 1 6 . ▁The ▁first ▁ten ▁lines ▁dep ict ▁the ▁actual ▁event .< ref > V era ▁Brit tain , ▁May ▁Mor ning '. ] </ ref