Cambridge University students stripped down to their underwear and jumped into the river after downing champagne to celebrate their exams at the £300-a-ticket Trinity Ball. They were seen plunging into the River Cam from the Magdalene Bridge in the early hours of this morning following the black tie event, which is in its 160th year.Others were seen popping champagne corks while being hoisted onto their friends' shoulders as they staggered their way home after a boozy night of partying, dressed to the nines in ball gowns and black tie. The May Ball boasted Rudimental as its headliner and was billed on its website as 'one of the most sought after tickets to be had in May Week' and 'an unrivalled showcase of revelry'.The committee heaped lavish praise on the drum and bass band ahead of the festivities saying their 'signature blend of uplifting beats and sun-soaked melodies has defined a generation of British music'. They wrote on their social media channels: 'With a stream of iconic anthems like "These Days", "Feel the Love", and "Waiting All Night", expect soaring tunes, infectious rhythms, and a crowd that won’t stop moving. 'Seamlessly balancing nostalgia with fresh energy, Rudimental delivers a feel-good main stage moment that captures the magic of the night.' Guests paid at least £225 for a single ticket for the event, which included a 'stunning fireworks display', musical entertainment and comedians. Cambridge University students stripped down to their underwear and jumped into the river after downing champagne to celebrate their exams at the £300-a-ticket Trinity Ball Students were told that the 'only acceptable attire' for the Trinity May Ball 'is traditional black tie, white tie or formal national dress' Cambridge University students are pictured here arriving at Trinity college for the May Ball Others were seen popping champagne corks while being hoisted onto their friends' shoulders Students drink from bottles of Gratien and Meyer French wine Guests paid at least £225 for a single ticket for the event, which included a 'stunning fireworks display', musical entertainment and comedians Students head home the morning after The Trinity and Jesus May Balls in CambridgeA VIP ticket allowed people to arrive an hour earlier 'to attend a sumptuous champagne reception'. There was also a dining ticket for 'a lavish five course feast with wine pairings' which was held in Trinity's Great Hall. The ball has been held every year since 1866, apart from 1910, when King Edward VII died, during the Second World War between 1939 and 1945, and in 2020 and 2021 because of the Covid-19 pandemic. Despite now taking place in June they are still called the May Balls, as that is when they were originally held.It is an informal tradition for students to jump into the river as part of their post-ball antics, though it is said to be discouraged.As temperatures began to climb this week before a heatwave, several were tempted into the water – some having stripped down to their underwear.It came as students at the prestigious university made their way home after a night of partying at the Trinity May Ball. Students staggered their way home after a boozy night of partying, dressed to the nines in ball gowns and black tie Some students stripped to their underwear, while others plunged into the water still dressed in their elegant ball gowns Students were seen plunging into the River Cam from the Magdalene Bridge in the early hours of this morning A student is seen here carrying a traffic cone as he makes his way home from a night of celebrating the end of the academic year Students are seen in the River Cam following a night of partying at the traditional Trinity Ball A Cambridge University student smiles as he shares his food with a friend Students were in high spirits as the made their way home after a night of partying at the Trinity May Ball It is an informal tradition for students to jump into the river as part of their post-ball antics, though it is said to be discouragedA series of balls are held to mark the end of term, with various colleges hosting them.Students were told that the 'only acceptable attire' for the Trinity May Ball 'is traditional black tie, white tie or formal national dress'.The dress code read: 'Lounge suits and sports blazers are not permitted. Dresses must be appropriate formal evening wear; floor-length gowns are typically worn. 'As we are a "Black Tie minimum" Ball, the dress code will be strictly enforced; those who are not properly attired will not be allowed entry into the Ball. Only small bags are permitted.'Partygoers were also warned beforehand they would be thrown out from the ball for any unruly behaviour.This included 'behaviour deemed to be violent, loud, indecent, illegal, or immoral, including the spiking of another’s drink; suspected excessive intoxication; possession of illegal substances; and refusing to comply with a search by Security Industry Authority (SIA) certified professional security'.