Two thousand Cambridge University students have descended on to a city centre park for the 'Caesarian Sunday' annual drinking party - despite being warned by their colleges to stay away.
The undergraduates spent the afternoon playing boozy drinking games in fancy dress on Jesus Green.
It comes just one week after college chiefs urged students not to attend the drinking party, which has taken place for the last 80 years.
The high-spirited students - some in fancy dress - appear to be 'fuelling' alcohol as they are surrounded by empty drinks bottles and cans.
By the end of the afternoon many of the students could barely stand and had to be supported by their friends, others were seen vomiting on the grass and litter was left strewn across the park.
Caesarian Sunday is seen as the birth of the drinking parties for the summer term, which ends with the notorious after-exams party, Suicide Sunday, in June.
The university had warned students not to bring shame on the institution, but many ignored the advice and celebrated the start of the summer term by downing alcohol using funnels and vomiting.