Crowds gathered at Oxford's Magdalen College to enjoy the 400-year-old tradition of the choir singing from the tower.
Police lined Madgalen Bridge to stop people jumping into the river.
Despite the authorities' best efforts, they could not stop everyone.
Crowds watched Morris dancers near the Sheldonian Theatre on Broad Street.
There was also less traditional entertainment for people to enjoy.
Dancers of all ages performed on the street throughout May morning.
Many of the performers maintained ancient May day traditions.
And many of the pubs opened as early as 0400 BST to serve breakfast.
Morris dancers made their way around the streets well into the late morning.
The centre of Oxford was closed for most of the morning as performers and revellers took over.
The crowds that turned out to see the street performers were lucky to have warm, sunny weather.
Many of the students stayed out all night after their May balls the day before.
Once the entertainment was coming to an end, people made their way home however they could.
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