Students enjoying a pre-exam binge on Cambridge's Jesus Green have been criticised for the piles of rubbish left behind.
Caesarian Sunday- the last hurrah before it's time to knuckle down- is marked every early May bank holiday weekend by an afternoon of drinking, barbecues and games on the city's Jesus Green.
The event has a reputation for anti-social activity – one year a student dressed as a sheep ended up being set on fire.
Hundreds of students flocked to the park in the sunshine yesterday (May 6) but left behind piles of waste.
The cost for cleaning up their mess is covered by the city council, with council leader previously warning the event could be banned if students do not behave.
Cllr Lewis Herbert this year again slammed students for taking advantage of a public space and not disposing of their rubbish.
"Caesarian Sunday was once again enjoyed by thousands of students and I am as glad as the University of Cambridge that it went off without major incident this year," he said.
"But thats no excuse for university students leaving Jesus Green, one of our much loved and well used parks, in such a mess year after year."
Cllr Herbert said he would again be raising the issue with the university's student union.
He added: "The students should tidy up properly after their annual pre-exam binge.
"Otherwise, our view is that the party should shift to one of the extensive areas of university or college land, and the university can take responsibility."
Cllr Herbert added: "Again this year, I thank our amazing staff team for the stunning clean up job, bringing Jesus Green back into great shape first thing this morning, even though students should have never left part of their adopted city in such a state.
"I also thank our local police whose patrol checks yesterday helped ensure that everyone there was able to enjoy the party safely."
In previous years, the drink-fuelled party has seen stripping, vomiting and littering, with students getting up to all sorts in the middle of the city.
It is thought to have been an annual tradition that started 80 years ago.
Caesarian Sunday has divided opinion among Cambrige residents in the past, with some saying it was "one rule for gown and another for town" and others labelling it as a bit of "fun".
Last year a small group of students were celebrated by one resident for taking it upon themselves to clear up some of the mess.
A spokeswoman for the university said: "If students choose to attend Caesarian Sunday, then they are made very well aware that they should act and behave responsibly, and tidy up after themselves when they leave.”
A spokesman for Cambridgsehire Police said he was not aware of any incidents of note being recorded at this years event.