A centuries-old ritual will see hundreds of students take part in a huge foam fight at one of the UK’s top universities.

The messy display takes place on Raisin Monday, the culmination of a weekend of festivities where first years say thank you to their more senior student “parents” for mentoring them.

The “children” are given embarrassing costumes to wear and descend on St Salvator’s Quad for a massive shaving foam fight.

Raisin Weekend dates far back into St Andrews’ history, and is so called because children traditionally gave their academic parents a pound of raisins to thank them for welcoming them to St Andrews.

Now it is more likely to be a bottle of wine.

St Andrews was founded in 1413 and is Scotland’s oldest university.