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Every summer term following exams, a mass water fight known as Opit is held on the grass behind Lawn Anex.
A bar-b-que is provided by the catering staff.
In 2006, in addition to the water fight, an entire Sports Day was organised in the mould of Primary School sports days.
Until at least 1956, Opit was a garden party in the Quad, although by the early 1990's had moved to the spacious walled garden behind ' Lawn ' annexe-which at that time was used as student accommodation-had started to develop the light-hearted sports-day theme, and had become something of a ' real ale beer festival ', part of the duties of the hall committee's bar-rep.
It evolved into a water fight and BBQ some time after that period.

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